Luquillo WEBB Project Bibliography

Guariguata, M.R, and Larsen, M.C., 1990, Preliminary map showing landslides in El Yunque quadrangle, Puerto Rico: U.S. Geological Survey Open-file Report 89-257, scale 1:20,000, 1 sheet.

Larsen, M. C., and Simon, A., 1990, Landslide processes in saprolitic soils of a tropical rain forest, Puerto Rico, in Larue, D.K., and Draper, G., eds., Transactions of the 12th Caribbean Geological Conference, St. Croix, U.S. Virgin Islands: Miami Geological Society, p. 217-222.

Larsen, M. C., and Torres-Sánchez, A. J., 1990, Rainfall-soil moisture relations in landslide-prone areas of a tropical rain forest, Puerto Rico, in Krishna, J. H., Quinones-Aponte, Vicente, Gomez-Gomez, Fernando, and Morris, G. L., eds., Tropical Hydrology and Caribbean Water Resources: Proceedings of the International Symposium on Tropical Hydrology and Fourth Caribbean Islands Water Resources Congress, p. 121-130.

Simon, Andrew, Larsen, M. C., and Hupp, C. R., 1990, The role of soil processes in determining mechanisms of slope failure and hillslope development in a humid-tropical forest: eastern Puerto Rico, in Kneuper, P.L.K., and McFadden, L. D., eds., Soils and Landscape evolution: Geomorphology, v. 3, p. 263-286.

Scatena, F. N., and Larsen, M. C., 1991, Physical aspects of Hurricane Hugo in Puerto Rico: Biotropica, v. 23, no. 4A, p. 317-323.

Larsen, M. C., and Torres-Sánchez, A. J., 1992, Landslides triggered by Hurricane Hugo in eastern Puerto Rico, September 1989: Caribbean Journal of Science, vol. 28, no. 3-4, p. 113-125.

Larsen, M.C., and Simon, Andrew, 1993, Rainfall-threshold conditions for landslides in a humid-tropical system, Puerto Rico: Geografiska Annaler, v. 75A (1-2), p. 13-23.

Larsen, M.C., Collar, P.D., and Stallard, R.F., 1993, Research plan for the investigation of water, energy, and biogeochemical budgets in the Luquillo mountains, Puerto Rico: U.S. Geological Survey Open-file Report 92-150, 19 p.

Keller, M., and Stallard, R.F., 1994, Methane emission by bubbling from Gatun Lake, Panama: Journal of Geophysical Research, v. 99, no. D4, p. 8307-8319.

White, A.F., 1994, Chemical weathering rates of silicate minerals in soils in White, A.F., and Brantley, S.L., Chemical Weathering Rates of Silicate Minerals, Reviews in Mineralogy, v. 31, p. 407-461.

Zack, Allen, and Larsen, M.C., 1994, Island hydrology: Puerto Rico and the U.S. Virgin Islands: National Geographic Research & Exploration: Water Issue, p. 126-134.

Brown, E.T., Stallard, R.F., Larsen, M.C., Raiseck, G.M., and Yiou, F. 1995, Denudation rates determined from the accumulation of in situ produced ¹⁰Be in the Luquillo Experimental Forest: Puerto Rico: Earth and Planetary Science Letters, vol. 129, p. 193-202.

Larsen, M.C., 1995, Use of seismic refraction techniques for investigating recent landslides in a tropical rain forest in Puerto Rico in Miller, R.L., Escalante, J.A., Reinemund, J.A., and Bergin, M.J., eds., Energy and Mineral Potential of the Central American-Caribbean Regions, Springer-Verlag, Berlin, p. 411-414.

Axtmann, E.V., and Stallard, R.F., 1995, Chemical weathering in South Cascade Glacier Basin, Comparison of subglacial and extra-glacial weathering, In: Biogeochemistry of Seasonally Snow-Covered Catchments (ed. by K. Tonnessenn, M.W. Williams, and M. Tranter) (Proc. Boulder Symp., July 1995). IAHS Publ. no 228, p. 431-439.

Stallard, R.F., 1995, Relating chemical and physical erosion, in Chemical Weathering Rates of Silicate Minerals: Washington, D.C., Mineralogical Society of America, Reviews in Mineralogy 31, p. 543-564, 583 pages.

Stallard, R.F., 1995, Tectonic, environmental, and human aspects of weathering and erosion: A global review using a steady-state perspective: Annual Review of Earth and Planetary Sciences, v. 12, p. 11-39.

White, A.F., and Blum, A.E., 1995, Climatic effects on chemical weathering in watersheds-- application of mass balance approaches in Trudgill, S.T., ed., Solute Modelling in Catchment Systems, John Wiley and Sons, Ltd., London, p. 102-131.

White, A.F., and Blum, A.E., 1995, Effects of climate on chemical weathering in watersheds: Geochimica et Cosmoschimica Acta, v. 59, no. 9, p. 1729-1747.

Larsen, M.C., Torres Sánchez, A.J., 1996, Climatologic, geographic, and geologic factors influencing the distribution and occurrence of landslides in the Blanco, Cibuco, and Coamo river basins, Puerto Rico: U.S. Geological Survey Water Resources Investigations Report 95-4029, 56 p.

Larsen, M.C. and Parks, J.E., 1997, How wide is a road? The association of roads and mass-wasting disturbance in a forested montane environment: Earth Surface Processes and Landforms, vol. 22, p. 835-848.

Myster, R.W., Thomlinson, J.R., and Larsen, M.C., 1997, Predicting landslide vegetation in patches on landscape gradients in Puerto Rico: Landscape Ecology, v. 12 p. 299-307.

Larsen, M.C., and Torres Sánchez, A.J., 1998, The frequency and distribution of recent landslides in three montane tropical regions of Puerto Rico: Geomorphology, v. 24, no. 4, p. 309-331.

White, A.F, Blum, A.E., Schulz, M.S., Vivit, D.V., Stonestrom, D.A., Larsen, Matthew, Murphy, S.F., and Eberl, D., 1998, Chemical weathering in a tropical watershed, Luquillo Mountains, Puerto Rico: I. Long-term versus short-term weathering fluxes: Geochimica et Cosmochimica Acta, v. 62, no. 2, p. 209-226.

Murphy, S.F., Brantley, S.L., Blum, A.E., White, A.F, Dong, Hailiang, 1998, Chemical weathering in a tropical watershed, Luquillo Mountains, Puerto Rico: II. Rate and mechanism of biotite weathering: Geochimica et Cosmochimica Acta, v. 62, no. 2, p. 227-243.

Larsen, M.C. and Concepción, I.M., 1998, Water budgets of forested and agriculturally-developed watersheds in Puerto Rico : Proceedings, Tropical Hydrology and Caribbean Water Resources, R.I. Segarra-García, ed., American Water Resources Association, San Juan, Puerto Rico, July 12-16, 1998, p. 199-204

White, A.F., and Stonestrom, D.A., 1998, Comparisons of short-term and long-term chemical weathering rates in granitoid regoliths, in Arehart, G.B., and Hulston, J.R., eds., Proceedings of the 9^th International Symposium on Water-Rock Interaction, WRI-9, Taupo, New Zealand, March 30-April 3, 1998, p. 399-402.

Dong, H., Peacor, D.R., and Murphy, S.F., 1998, TEM Study of progressive weathering of igneous biotite to kaolinite throughout a weathered soil profile: Geochimica et Cosmochimica Acta, vol. 62, no. 11, pp. 1881-1887.

Stonestrom, D.A., White, A.F., and Akstin, K.C., 1998, Determining rates of chemical weathering in soils--Solute transport versus profile evolution: Journal of Hydrology, v. 209, p. 331-345.

Brown, E. T., Stallard, R. F., Larsen, M. C., Bourlès, D. L., Raisbeck, G. M., and Yiou, F., 1998, Determination of predevelopment denudation rates of an agricultural watershed (Cayaguás River, Puerto Rico) using in situ-produced ¹⁰Be in river-borne quartz: Earth and Planetary Sciences Letters, v. 160, p. 723-728.

Stallard, R. F., 1998, Terrestrial sedimentation and the carbon cycle: Coupling weathering and erosion to carbon burial: Global Biogeochemical Cycles, v. 12, no. 2, p. 231-252.

Larsen, M.C., Torres-Sánchez, A.J., and Concepción, I.M., 1999, Slopewash, surface runoff, and fine-litter transport in forest and landslide scars in humid-tropical steeplands, Luquillo Experimental Forest, Puerto Rico: Earth Surface Processes and Landforms, vol. 24, p. 481-502.

Schulz, M.S. and White, A.F., 1999, Chemical Weathering in a Tropical Watershed, Luquillo Mountains, Puerto Rico: III. Quartz Dissolution Rates: Geochimica et Cosmochimica Acta, vol. 63, p. 337-350.

White, A.F., Blum, A.E., Bullen, T.D., Vivit, D.V., Schulz, Marjorie, and Fitzpatrick, John, 1999, The effect of temperature on experimental and natural chemical weathering rates of granitoid rocks: Geochimica et Cosmochimica Acta, vol. 63, p. 3277-3291.

Kinner, D.A., and Stallard, R.F., 1999, The hydrologic model TOPMODEL, in Panama Canal Watershed Monitoring Project, editor, Report of the Panama Canal Watershed Monitoring Project, p. Chapter II. 9, 8 volumes, 21 CD-ROM’s.

Stallard, R.F., 1999, Erosion and the effects of deforestation in the Panama Banal Basin, in Panama Canal Watershed Monitoring Project, editor, Report of the Panama Canal Watershed Monitoring Project, p. Chapter II. 8, 8 volumes, 21 CD-ROM’s.

Larsen, M.C. and Stallard, R.F., 2000, Water, Energy,and Biogeochemical Budgets Luquillo Mountains, Puerto Rico: U.S. Geological Survey Fact Sheet, FS 163-99, 4 p.

Larsen, M.C., 2000, Analysis of 20th century rainfall and streamflow to characterize drought and water resources in Puerto Rico: Physical Geography, v. 21, p. 494-521.

Larsen, M.C., 2000, Evaluation of temporal and spatial factors that control the susceptibility to rainfall- triggered landslides in E. Gruntfest and J. Handmer, editors, Coping with Flash floods, Proceedings of the NATO Advanced Studies Institute, November, 1999, Ravello, Italy, NATO ASI Series.

Larsen, M.C., Vásquez Conde, M.T., and Clark, R.A., 2000, Flash-flood related hazards: landslides, with examples from the December, 1999 disaster in Venezuela in E. Gruntfest and J. Handmer, editors, Coping with Flash floods, Proceedings of the NATO Advanced Studies Institute, November, 1999, Ravello, Italy, NATO ASI Series.

Larsen, M.C., Wieczorek, G. F., Eaton, L.S., and Torres-Sierra, H., 2000, The Venezuela landslide and flash flood disaster of December 1999, 2nd Plinius Conference, October, 2000, Sienna, Italy, 4 p.

Stallard, R.F. 2000, Tectonic processes and erosion, in Jacobson, M.C., Charleson, R.J., Rodhe, H., and Orians, G.H., editors, Earth System Science: From Biogeochemical Cycles to Global Change: San Diego, California, Academic Press. p. 195-229.

Carter, L.M., Shea, E., Hamnett, M., Anderson, C., Dolcemascolo, G., Guard, C., Taylor, M., Barnston, T, He, Y., Larsen, M.C., Loope, L., Malone, L., and Meehl, M., 2001, Potential consequences of climate variability and change for the US-affiliated islands of the Pacific and Caribbean: Chapter 11, p. 315-349 in: The Potential Consequences of Climate Variability and Change: Foundation Report, Report by the National Assessment Synthesis Team for the US Global Change Research Program, Cambridge University Press, Cambridge, UK, 620p.

Larsen, M.C. and Santiago-Román, Abigail, 2001, Mass wasting and sediment storage in a small montane watershed: an extreme case of anthropogenic disturbance in the humid tropics, in Dorava, J. M., Palcsak, B.B., Fitzpatrick, F. and Montgomery, D., eds., Geomorphic Processes and Riverine Habitat: American Geophysical Union, Water Science & Application Series Volume 4, p. 119-138.

Larsen, M.C., 2001, Evaluation of temporal and spatial factors that control the susceptibility to rainfall-triggered landslides, in Gruntfest, E., and Handmer, J., eds., Coping with Flash floods: Kluwer Academic Publishers, p. 277-288.

Larsen, M.C., Figueroa Alamo, C., Gray, J.R., and Fletcher, W., 2001, Continuous automated sampling of streamflow density as a surrogate for suspended sediment concentration sampling: Proceedings of the Seventh Federal Interagency Sedimentation Conference, March 25 through 29, 2001, Reno, NV, p. IV-9 to III-102 to III-109.

Larsen, M.C., Vásquez-Conde, M.T., and Clark, R.A., 2001, Flash-flood related hazards: landslides, with examples from the December, 1999 disaster in Venezuela, in E. Gruntfest and J. Handmer, eds., Coping with Flash floods: Kluwer Academic Publishers, p. 259-275.

Larsen, M.C., Wieczorek, G. F., Eaton, L.S., and Torres-Sierra, H., 2001, Natural hazards on alluvial fans: the debris flow and flash flood disaster of December 1999, Vargas state, Venezuela: in Sylva, E.F., ed., Proceedings of the Sixth Caribbean Islands Water Resources Congress, Mayagüez, Puerto Rico, February 22 and 23, 2001, unpaginated CD.

Larsen, M.C., Wieczorek, G. F., Eaton, L.S., and Torres-Sierra, H., 2001, The rainfall-triggered landslide and flash-flood disaster in northernVenezuela, December 1999: Proceedings of the Seventh Federal Interagency Sedimentation Conference, March 25 through 29, 2001, Reno, NV, p. IV-9 to IV-16.

Larsen, M.C., Wieczorek, G.F., Eaton, L.S., and Torres-Sierra, H., 2001, Venezuelan Debris Flow and Flash Flood Disaster of 1999 Studied: EOS Transactions, American Geophysical Union, v. 82, no. 47. p. 572-573.

Larsen, M.C., Wieczorek, G.F., Eaton, L.S., Morgan, B.A., Torres-Sierra, H., 2001, Natural hazards on alluvial fans: the Venezuela debris-flow and flash-flood disaster: U.S. Geological Survey Fact Sheet, FS 103-01, 4 p.

Larsen, M.C., Wieczorek, G.F., Eaton, L.S., Morgan, B.A., Torres-Sierra, H., 2001, Venezuela debris-flow and flash-flood disaster of 1999 studied: EOS, Transactions: American Geophysical Union, v. 82, no. 47, p. 572-573.

Santiago, Marilyn, and Larsen, M.C., 2001, Earthquake-induced landslide susceptibility in the San Juan Metropolitan Area, Puerto Rico: U.S. Geological Survey Open-file Report 01-39, 1 CD.

Stallard, R.F.: 2001, Possible Environmental Factors Underlying Amphibian Decline in Eastern Puerto Rico--Analysis of U.S. Government Data Archives: Conservation Biology, v. 15, no. 4, p. 943-953.

Wieczorek, G F; Larsen, M C; Eaton, L S; Morgan, B A; Blair, J L, 2001, Debris-flow and flooding hazards associated with the December 1999 storm in coastal Venezuela and strategies for mitigation: U.S. Geological Survey Open-File Report OF 01-0144.

Wieczorek, G.F., Larsen, M.C., Eaton, L.S., Morgan, B.A. and Blair, J. L., 2001, Debris-flow and flooding hazards associated with the December 1999 storm in coastal Venezuela and strategies for mitigation: U.S. Geological Survey Open File Report 01-144, 40p., 3 tables, 2 appendices, 3 plates, 1 CD.

Larsen, M.C., Wieczorek, G.F., Eaton, L.S., Morgan, B.A., Torres-Sierra, H., 2002, Peligros Naturales en los Abanicos Aluviales: El Desastre Ocasionado por Flujos Detríticos e Inundaciones Repentinas en Venezuela: U.S. Geological Survey Fact Sheet, FS 103-01s, 4 p.

Wieczorek, G.F., Larsen, M.C., Eaton, L.S., Morgan, B.A. and Blair, J. L., 2002, Debris-flow and flooding deposits in coastal Venezuela associated with the storm of December 14-16, 1999: U.S. Geological Survey, Geologic Investigation Series Map I-2772.

Gray, J.R., Melis, T.S, Patiño, Eduardo, Larsen, M.C., Topping, D.J., Rasmussen, P.P., and Figueroa-Alama, Carlos, 2003, U.S. Geological Survey research on surrogate measurements for suspended sediment, in Renard, Kenneth, G., McElroy, Stephen A., Gburek, William J., Canfield, H. Evan, and Scott, Russell L., eds., Proceedings of the 1st Interagency Conference on Research in Watersheds: U.S. Department of Agriculture, Agricultural Research Service, October 27-30, 2003, Benson, Arizona, p. 95-100.

Gray, J.R., Patiño, Eduardo, Rasmussen, P.P., Larsen. M.C., Melis, T.S., Topping, D.J., and Alamo, C.F., 2003, Evaluation of sediment surrogate technologies for computation of suspended-sediment transport: Proceedings of the 1st International Yellow River Forum on River Basin Management, Zhengzhou, Henan Province, China, the Yellow River Conservancy Publishing House, v. III, p. 314-323.

Peters, N.E., Shanley, J.B., Aulenbach, B.T., Blum, A.E., Campbell, D.H., Stallard, R.F., Troester, J.W., Walker, J.F., and White, A.F., 2003, Geochemical mass balances for watersheds of the USGS Water, Energy, and Biogeochemical Budgets (WEBB) Program, 1992-97. XXIII General Assembly of the International Union of Geodesy and Geophysics, July 30-July 11, 2003, Sapporo, Japan, HW01/10P/C26-002, p. B.343-344.

Riebe, C.S., Kirchner, J.W., and Finkel, R.C., 2003, Long-term rates of chemical weathering and physical erosion from cosmogenic nuclides and geochemical mass balance, Geochim. Cosmochim. Acta, v. 67, p. 4411-4427.

Turner, B.F., Stallard, R.F., and Brantley, S.L., 2003, Investigation of quartz diorite weathering in the Rio Icacos Basin, Luquillo Experimental Forest, Puerto Rico: Chemical Geology, v. 202, p. 313-341.

Buss H.L., Sak P.B., White A.F., and Brantley S.L., 2004, Mineral dissolution at the granite-saprolite interface, in Wanty, R.B., and Seal, R.R. II, editors, Proceedings of the 11th International Symposium on Water-Rock Interaction, Taylor and Francis, the Netherlands, p. 819-823.

Condit, R., Robinson, W.D., Ibáñez D., R., Aguilar, S., Sanjur, A., Martínez, R., Stallard, R.F., García, T., Angehr, G.R., Petit, L., Wright, S.J., Robinson, T.R., and Heckadon M., S., 2001, The status of the Panama Canal Watershed and Its biodiversity at the beginning of the 21st Century: Bioscience, v. 51, no. 5, p. 389-398.

Godsey, S., H. Elsenbeer, and R.F. Stallard, 2004. Overland flow generation in two lithologically-distinct rainforest catchments, Barro Colorado Island, Panama, Journal of Hydrology, v. 295, p. 276-290.

Kinner, D.A., and Stallard, R.F., 2004, Identifying storm-flow pathways in a rainforest catchment using hydrometric and geochemical evidence: Hydrological Processes, v. 18, p. 2851-2875.

Kurtz, A.C., and Derry, L.A., 2004, Tracing silicate weathering and terrestrial silica cycling with Ge/Si ratios, in Wanty, R.B., and Seal, R.R., editors, 11th International Symposium on Water Rock Interaction: Lisse, The Netherlands, Swets & Zeitlinger Pubs, 833-837.

Larsen, M.C., Santiago, Marilyn, and Jibson, R. W., 2004, Map showing landslide susceptibility in the municipality of Ponce, Puerto Rico: USGS Scientific Investigations Map Report Number : I-2818.

Riebe, C.S., Kirchner, J.W., and Finkel, R.C., 2004, Erosional and climatic effects on long-term chemical weathering rates in granitic landscapes spanning diverse climate regimes, Earth and Planetary Science Letters, v. 224, p. 542-567.

Svenning, J.-C., Kinner, D.A., Stallard, R.F., Engelbrecht, B., and Wright, S.J., 2004, Determinism in plant community structure across a tropical forest landscape: Ecology, v. 85, p. 2526-2538.

Troester, J.W., and Turvey, M.D., 2004, Water-Resources Reconnaissance of Île de la Gonâve, Haiti: Hydrogeology Journal, v. 12, p. 224-236.
Pando, M. A. Ruiz, M. E., and Larsen, M. C., 2005, Rainfall-Induced Landslides in Puerto Rico: An Overview: American Society of Civil Engineers, Geo-Institute & Geosynthetics 2005 Conference, Austin, TX.

Simon, Andrew, and Larsen, M.C., 1988, Shear strength and slope stability at sites in the Caribbean National Forest and Coamo area, Puerto Rico [abs] Geological Society of America: Abstracts with programs, v. 20, no. 7, p. A144.

Larsen, M.C., 1989, Use of seismic refraction techniques for investigating the morphology of recent landslides in a tropical rain forest in Puerto Rico [abs] Geological Society of America: Abstracts with Programs, v. 21, no. 3, p. 46.

Larsen, M.C., 1990, Landslides caused by the intense precipitation of Hurricane Hugo, September 1989, Eastern Puerto Rico [abs] EOS, Transactions: American Geophysical Union, v. 71, no. 6, p. 257.

Larsen, M.C., 1990, Landslides and pore pressure responses associated with Hurricane Hugo, September 1989, eastern Puerto Rico [abs] Geological Society of America: Abstracts with programs, v. 22, no.7, p. A331.

Simon, A., and Larsen, M. C., 1990, Slope failure processes in saprolitic soils of a tropical rain forest, Puerto Rico [abs] in Larue, D.K., and Draper, G., eds., Transactions of the 12th Caribbean Geological Conference, St. Croix, U.S. Virgin Islands: Miami Geological Society, p. 545.

Larsen, M. C., 1991, Mass wasting disturbance and denudation in a humid-tropical montane forest, Puerto Rico [abs] Geological Society of America: Abstracts with programs, vol. 23, no. 5, p. A256.

Larsen, M. C., and Simon, Andrew, 1992, A rainfall intensity-duration threshold for landslides in a humid-tropical environment, Puerto Rico [abs] Geological Society of America: Abstracts with programs, vol. 24, no. 7, p. A234.

Larsen, M.C., Collar, P.D., and Stallard, R.F., 1993, Water, energy, and biogeochemical budgets in the Luquillo mountains, Puerto Rico [abs] in Kelmelis, J.A., and Snow, Mitchell, Proceedings of the U.S. Geological Survey Global Change Research Forum, Herndon, Virginia, March 18-20, 1991, U.S. Geological Survey Circular 1086, p. 94.

Stallard, R.F., 1993, Examination of biogeochemical processes in tropical watersheds of Puerto Rico and Panama, in Kelmelis, J. A., and Snow, Mitchell, editors, U.S. Geological Survey Global Change Forum, Herndon, Virginia, March 18 1991-March 20 1991, U.S. Geological Survey Circular 1086, p. 110.

Brown, E.T., Stallard, R.F., Larsen, M.C., Raiseck, G.M., and Yiou, F. 1993, Denudation rates based on accumulation of in situ produced ¹⁰Be compared with watershed mass balance results in the Luquillo Experimental Forest, Puerto Rico [abs] EOS, Transactions: American Geophysical Union, vol. 74, no. 43, p. 295.

Blum, A.E., White, A.F., Bullen, Thomas, Schulz, Marjorie, and Larsen, Matthew, 1993, Chemical weathering of silicate minerals in a mountainous, tropical rain forest, Puerto Rico [abs] Geological Society of America: Abstracts with programs, vol. 25, no. 6, p. A255.

Larsen, M.C., 1995, Comparison of sediment yields from forested and agriculturally-developed montane humid-tropical watersheds, Puerto Rico [abs] International Association of Geomorphologists-Southeast Asia Conference, Singapore, June 18-23, 1995.

Larsen, M.C., 1995, How wide is a road? The association of roads and mass wasting in a forested montane environment, Puerto Rico [abs] American Geophysical Union, EOS Supplement, v. 76, no. 17, p. S309.

Larsen, M.C., and Huntington, T.G., Booker, D.L., Concepción, I.M., Parks, J.E.,Pojunas, T.P., and Torres Sánchez, A.J., 1995, Suspended sediment transport in small upland humid watersheds undergoing afforestation following human disturbance: a comparison of tropical and temperate environments [abs] EOS, Transactions: American Geophysical Union, vol. 76, no.46, p. F260.

Brown, E.T., Stallard, R.F., Larsen, M.C., Bour, D.L., Raiseck, G.M., and Yiou, F. 1995, Pre-anthropogenic denudation rates of a perturbed watershed (Cayaguás River, Puerto Rico) estimated from in situ produced ¹⁰Be in river borne quartz [abs] EOS, Transactions: American Geophysical Union, vol. 76, no. 46, p. F685.

Turner, B. F., Murphy, S. F., Brantley, S. L., White, A. F., Blum, A. E., 1995, Chemical weathering processes in a tropical rain forest soil, Puerto Rico [abs] GSA Abstracts with Programs v.27 no.6 p.A235.

Murphy, S.F., Brantley, S.L., White, A.F., and Blum, A.E. 1995, Kaolinite formation and cation release from biotite in a tropical forest soil [abs] Fifth Annual V.M. Goldschmidt Conference, The Pennsylvania State University. May 24-26, 1995.

Larsen, M.C.,1996, Mass wasting in the humid tropics: The agriculturally-developed Cayaguás watershed, Puerto Rico--An extreme case [abs] Geological Society of America, Abstracts and Program, v. 28, no. 7, p. A-80.

Turner, B.F., Brantley, S.L., Stonestrom, D.A., White, A.F., and Larsen, M.C., 1996, Solute transport and chemical weathering in a tropical forest saprolite, Puerto Rico [abs] Geological Society of America, Abstracts and Program, v. 28, no. 7.

Larsen, M.C., Torres-Sánchez, A.J., and Concepción, I.M., 1997, Watershed sensitivity to land use and lithology: a comparison of fluvial sediment yield in four small montane tropical catchments, Puerto Rico [abs] EOS, Transactions: American Geophysical Union, vol. 78.

Vivit, D.V., White, A.F., Bullen, T.D., and Schulz, M.S., 1997, Long term experimental weathering in granitoid rocks: Rubidium-Potassium ratio as an indicator of mineral reaction rates[abs] EOS, Transactions: American Geophysical Union, vol. 78.

Larsen, M.C., Torres-Sánchez, A.J., and Concepción, I.M., 1998, Can 19^th century agricultural practices explain 21^st century fluvial sediment yield in a tropical watershed? [abs] EOS, Transactions: American Geophysical Union, vol. 79.

Stallard, R.F., Axtmann, E.V., and Martin, D.A., 1998, The biogeochemistry of a landslide-dominated catchment in the Luquillo Mountains of eastern Puerto Rico: [abs] EOS, Transactions: American Geophysical Union, vol. 79

White, A.F., 1998, Weathering of disseminated calcite in granitoid rocks of the WEBB watersheds: implications for global Ca and C fluxes [abs] EOS, Transactions American Geophysical Union, vol. 79, S124.

Bullen, T.D., 1998, Controls on base cation fluxes in watersheds: what we've learned from Sr isotope studies at the WEBB sites [abs] EOS, Transactions American Geophysical Union, vol. 79, S124.

Larsen, M.C., Torres-Sánchez, A.J., and Concepción, I.M., 1998, Slopewash, surface runoff, and fine-litter transport in forest and landslide scars in humid-tropical steeplands, Luquillo Experimental Forest, Puerto Rico [abs] EOS, Transactions American Geophysical Union, vol. 80.

Parks, J.E. and Larsen, M.C., 1998, Landslide susceptibility map in a rural montane, humid-tropical municipality, Comerío, Puerto Rico [abs] EOS, Transactions American Geophysical Union, vol. 80.

Larsen, M.C., 1999, Rainfall, drought, and water resources in the northeastern Caribbean: EOS, Transactions: American Geophysical Union, vol. 81.

Sears, R.E., and Larsen, M.C., 1999, The effects of land use on the storage capacity of surface-water reservoirs in Puerto Rico: EOS, Transactions: American Geophysical Union, vol. 81.

Eaton, L S; Larsen, M C; Wieczorek, G F; Torres-Sierra, H., 2000, Landslides and catastrophic flooding in northern Venezuela, December, 1999: Geological Society of America, Abstracts with Programs, v. 32, no.7, p.223.

Richards, R.T., and Troester, J.W., 2000, Using marine tides to estimate aquifer diffusivity in Puerto Rico: EOS, Transactions: American Geophysical Union, v. 82.

Troester, J.W., 2000, Karst Geochemistry: Limestone Islands Aquifers-Developing More Accurate Models Conference, Water and Environmental Research Institute of the Western Pacific, University of Guam.

Troester, J.W., and Larsen, M.C., 2000, Long-Term Watershed Research in the Luquillo Experimental Forest and the Río Grande de Loíza basin, eastern Puerto Rico: EOS, Transactions: American Geophysical Union, v. 81, no. 48.

Larsen, M.C., Wieczorek, G. F., Eaton, L.S., Torres-Sierra, H., and Morgan, B.A., 2001, The December 1999 rainfall-triggered landslide and flash-flood disaster in Vargas, Venezuela: EOS, Transactions: American Geophysical Union, v. 82.

Riebe, C.S., Kirchner, J.W., and Finkel, R.C., 2001, Long-term rates of chemical weathering and physical erosion in extreme climates, measured by cosmogenic nuclides and geochemical mass balance: Eos Trans. AGU, 82(47), Fall Meeting Supplement, Abstract H42D-0377.

Shanley, J. B., Peters, N. E., Aulenbach, B. T., Blum, A. E., Campbell, D. H., Clow, D. W., Larsen, M. C., Mast, M. A., Stallard, R. F., Troester, J. W., Walker, J. F., Webb, R. M., and White, A. F., 2001, Biogeochemical Process Comparison of the Five USGS Water, Energy, and Biogeochemical Budget (WEBB) Sites: EOS Transactions, American Geophysical Union, v. 82, no. 47, Fall Meeting Supplement, Abstract H41A-0259.

Troester, J.W., 2001, Nitrate and Phosphate Concentration Trends in Selected Puerto Rico Rivers over the Past Four Decades-The Impact of Human Activity on Tropical Island Landscapes and Water Quality: EOS Transactions, American Geophysical Union, v. 82, no. 48, Fall Meeting Supplement, Abstract H11C-0250.

Webb, R.M., Leavesley, G.H., Shanley, J. B., Peters, N. E., Aulenbach, B. T., Blum, A. E., Campbell, D. H., Mast, M. A., Stallard, R. F., Larsen, M. C., Troester, J. W., Walker, J. F., and White, A. F., 2001, Using Multiple Tracers to Verify Model Simulations of Solute Transport at the Five USGS Water, Energy, and Biogeochemical Budget (WEBB) Sites: EOS Transactions, American Geophysical Union, v. 82, no. 47, Fall Meeting Supplement, Abstract H41A-0260.

Larsen, M.C. and Santiago-Román, Abigail, 2002, Anthropogenic disturbance, mass wasting and sediment storage in a small humid tropical montane watershed: Geological Society of America Abstracts with Programs, Annual Meeting, Denver, CO, v. 34.

Larsen, M.C. and Wieczorek, G.F., 2002, Debris- flow hazards on alluvial fans: examples from the 1999 Venezuela disaster: Geological Society of America Abstracts with Programs, Annual Meeting, Denver, CO, v. 34.

Troester, J.W., 2002, Changing Water-Resources on Île de la Gonâve, Haiti: EOS Transactions, American Geophysical Union, v. 83, no. 47, Fall Meeting Supplement, Abstract H61C-0804.

Gellis, A.C., 2003, The Suspended-sediment Conveyor Belt in Humid Tropical Puerto Rico: EOS Transactions, American Geophysical Union, v. 84, Fall Meeting Supplement, Abstract H51F-03.

Kurtz, A.C., Derry, L.A., and Troester, J.W., 2003, Tracing Terrestrial Silica Cycling Using Ge/Si Ratios, Luquillo Mountains, Puerto Rico: EOS Transactions, American Geophysical Union, v. 84, Fall Meeting Supplement, Abstract B21B-0717.

Larsen, M.C. and Wieczorek, G.F., 2003, Anthropogenic influences on landslide hazards in the tropics: examples from Puerto Rico and Venezuela: International Association of Geomorphologists, Regional Geomorphology Conference-Geomorphic hazards: Towards the prevention of disasters, Mexico City, October 27-November 2, 2003, Abstract volume, p. 42-43.

Larsen, M.C., 2003, Suspended-Sediment Export From Four Small Montane Humid-Tropical Watersheds With Varying Land use and Lithology, Puerto Rico:: EOS, Transactions: American Geophysical Union, v. 84, no. 46, Fall Meeting Supplement, Abstract H51F-02.

Pett-Ridge, J., and Derry, L.A., 2003, Soil 234U-238U and the Potential Use of U-series Disequilibrium as a Weathering Tracer: EOS Transactions, American Geophysical Union, v. 84, Fall Meeting Supplement, Abstract V51C-0308.

Webb, R.M., Leavesley, G.H., Shanley, J.B., Peters, N.E., Aulenbach, B.T., Blum, A.E., Campbell, D.H., Clow, M.C., Mast, M.A., Stallard, D.W., Larsen, R.F., Troester, J.W., Walker, J.F., and White, A.F., 2003, Use of the Water, Energy, and Biogeochemical Model (WEBMOD) to simulate water quality at five U.S. Geological Survey research watersheds. EOS, Transactions of the American Geophysical Union 84(46), Fall Meet. Supp., Abstract H51C-1070, F742.

Kirchner, J.W., Riebe, C.S., Ferrier, K.L., and Finkel, R.C., 2004, Effects of Climate on Long-term Rates of Physical Erosion and Chemical Weathering: Evidence from Cosmogenic Nuclides and Geochemical Mass Balance: Eos Trans. AGU, 85(47), Fall Meet. Suppl., Abstract H53E-06.

Kurtz, A.C., Derry, L.A., Chadwick, O.A., and Scribner, A.M., 2004, Germanium-Silicon Fractionation During Weathering of Basalt and Granite: Examples from the Tropics: Eos Trans. AGU, 85(47), Fall Meet. Suppl., Abstract V51A-0508

Larsen M.C., Webb, R.M., and Warne, A.G., 2004, Terrestrial sediment and nutrient discharge, and their potential influence on coral reefs, Puerto Rico: EOS, Transactions: American Geophysical Union, v. 85. no. 47, Abstract H51C-1133.

Muhs, D.R., Simmons, K.R., Taggart, B.E., Prentice, C.S., Joyce, J., and Troester, J.W., 2004, Timing and duration of the last interglacial period from U-series ages of unaltered reef corals, northern and western Puerto Rico: Geological Society of America, Abstracts with Programs, v. 36, no. 7.

Pett-Ridge, J.C., Kurtz, A.C., Derry, L.A., and Troester, J.W., 2004, A Ge/Si, 234U/238U, and 87Sr/86Sr investigation of weathering reactions and flowpaths in a tropical granitoid watershed: Goldschmidt Geochemistry 2004 Conference, Copenhagen, Denmark, Geochimica et Cosmochimica Acta, v. 68, no.11, Supplement 1, p. A446.

Prentice, C.S., McGeehin, J.P., Simmons, K.R., Muhs, D.R., Roig, C., Joyce, J., And Taggart, B.E., 2004, Holocene marine terraces in Puerto Rico: evidence for tectonic uplift?: Geological Society of America, Abstracts with Programs, v. 36, no. 7.

Riebe, C.S., Kirchner, J.W., and Finkel, R.C., 2004, Linkages Between Physical Erosion and Chemical Weathering, Measured by Cosmogenic Nuclides and Geochemical Mass Balance: Eos Trans. AGU, 85(47), Fall Meet. Suppl., Abstract H41H-01.

Larsen M.C., Webb, R.M., and Warne, A.G., 2005, How much water and suspended-sediment does a large tropical island shed during a major hurricane? Hydrologic and geomorphologic effects of Hurricane Georges, September 1998, Puerto Rico: EOS, Transactions: American Geophysical Union, v. 86, Abstract H23C-06.

Murphy, Sheila F., 1995, Weathering of biotite in a tropical forest soil, Luquillo mountains, Puerto Rico: Masters Thesis, Pennsylvania State University Department of Geosciences, 100 p.

Joyce, Jenny A., 1996, Physical and Chemical Controls Methane Bubbling from Two Tropical Reservoirs: Masters Thesis, University of Utah Department of Geology and Geophysics, 80 p.

Larsen, Matthew C., 1997, Tropical geomorphology and geomorphic work: A study of geomorphic processes and sediment and water budgets in montane humid-tropical forested and developed watersheds, Puerto Rico: Ph.D. thesis, University of Colorado Geography Department, 341 p.

Ortíz-Zayas, Jorge, 1998, The Metabolism of the Río Mameyes, Puerto Rico: Carbon Fluxes in a Tropical Rain Forest River: Ph.D. thesis, University of Colorado, Department of Environmental, Population, and Organismic Biology, 344 p.

Rivera-Ramirez, Héctor D., 1999, Peak discharge prediction, recession analysis, and evaluation of streamflow response to rainfall for watersheds in the Luquillo Experimental Forest, Puerto Rico: Masters Thesis, University of Connecticut, 112 p.

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