PUBLICATIONS

 

Wang L., Brook. G.A., Burney, D., Voarintsoa, N. R.G., Liang, F., Cheng, H., Edwards, L. 2019. The African Humid Period, Rapid Climate Change events, and megafaunal extinctions in Madagascar during the Holocene: evidence from a 2m Anjohibe Cave stalagmite. (Accepted)

 

Barkan E., Affek, H.P., Luz, B., Bergel, S., Voarintsoa, N.R.G., and Musan, I. 2019. Calibration of  d17O and 17Oexcess of three international standards - IAEA603, NBS19 and NBS18. https://doi.org/10.1002/rcm.8391

 

Voarintsoa, N.R.G., Matero, I.S.O., Railsback, L.B., Gregoire, L.J., Tindall, J., Sime, L., Cheng, H., Edwards, R.L., Brook, G.A., Kathayat, G., Li, X., Michel Rakotondrazafy, A.F., Madison Razanatseheno, M.O., 2019. Investigating the 8.2 ka event in northwestern Madagascar: Insight from data–model comparisons. Quaternary Sci Rev 204, 172-186.

 

Voarintsoa, N.R.G., Raveloson, A., Barimalala, R., Razafindratsima, O., H, 2018. A unified English term that best reflect the people, the culture, and other things from Madagascar: 'Malagasy' instead of 'Madagascan'. HAL-archives ouvertes

 

Railsback,L.B., Brook, G.A., Liang, F., Voarintsoa, N.R.G., Cheng, H., and Edwards, R.L., 2018, A multi-proxy climate record from a northwestern Botswana stalagmite suggesting wetness late in the Little Ice Age (1810-1820 CE) and drying thereafter in response to changing migration of the tropical rain belt or ITCZ: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 506, p. 139-153.

 

Railsback, L.B., Liang, F., Brook, G.A., Voarintsoa, N.R.G., Sletten, H.R., Marais, E., Hardt, B., Cheng, H., Edwards, R.L., 2018. The timing, two-pulsed nature, and variable climatic expression of the 4.2 ka event: A review and new high-resolution stalagmite data from Namibia. Quaternary Sci Rev 186, 78-90.

 

Voarintsoa, N. R. G., Railsback, L. B., Brook, G. A., Wang, L., Kathayat, G., Cheng, H., Li, X., Edwards, R. L., Rakotondrazafy, A. F. M., and Madison Razanatseheno, M. O., 2017. Three distinct Holocene intervals of stalagmite deposition and non-deposition revealed in NW Madagascar, and their paleoclimate implications, Clim. Past. Special Issue: Southern Hemisphere Assessment of PalaeoEnvironment (SHAPE).

 

Voarintsoa, N. R. G., Railsback, L. B., Brook, G. A., Wang, L., Kathayat, G., Cheng, H., Li, X., Edwards, R. L., Rakotondrazafy, A. F. M., and Madison Razanatseheno, M. O., 2017. Three distinct Holocene intervals revealed in NW Madagascar: evidence from two stalagmites from two caves, and implications for ITCZ dynamics, Clim. Past Discuss., doi:10.5194/cp-2016-137.

 

Voarintsoa, N.R.G., Wang, L.X., Railsback, L.B., Brook, G.A., Liang, F.Y., Cheng, H., Edwards, R.L., 2017. Multiple proxy analyses of a U/Th-dated stalagmite to reconstruct paleoenvironmental changes in northwestern Madagascar between 370 CE and 1300 CE. Palaeogeogr Palaeocl 469, 138-155. http://dx.doi.org/10.1016/j.palaeo.2017.01.003

 

Voarintsoa, Ny Riavo G., George A. Brook, Fuyuan Liang, Eugene Marais, Ben Hardt, Hai Cheng, R. Lawrence Edwards, and L. Bruce Railsback, 2017, Stalagmite multi-proxy evidence of wet and dry intervals in northeastern Namibia: linkage to latitudinal shifts of the Inter-Tropical Convergence Zone and changing solar activity from AD 1400 to 1950. The Holocene. v. 27, no. 3, p. 384-396. doi:10.1177/0959683616660170. (published online July 2016)

 

Brook, G.A., Railsback, L. B., Scott, L., Voarintsoa, N.R.G., Liang, F., 2015, Late Holocene Stalagmite and Tufa Climate Records for Wonderwerk Cave: Relationships Between Archaeology and Climate in Southern Africa: African Archaeological Review, v. 34 (4), p. 1-32.

 

Railsback, L. B., Gibbard, P.L., Head, M.J., Voarintsoa, N.R.G., Toucanne, S., 2015, An optimized scheme of lettered marine isotope substages for the last 1.0 million years, and the climatostratigraphic nature of isotope stages and substages: Quaternary Science Reviews, v. 111, p. 94-106.

 

Railsback, L. B., Akers, P. D., Wang, L. X., Holdridge, G. A., and Voarintsoa, N. R., 2013, Layer-bounding surfaces in stalagmites as keys to better paleoclimatological histories and chronologies: International Journal of Speleology, v. 42, no. 3, p. 167-180. [pdf]

 

Feneyrol, J., Giuliani, G., Ohnenstetter, D., Fallick, A. E., Martelat, J. E., Monie, P., Dubessy, J., Rollion-Bard, C., Le Goff, E., Malisa, E., Rakotondrazafy, A. F. M., Pardieu, V., Kahn, T., Ichangi, D., Venance, E., Voarintsoa, N. R., Ranatsenho, M. M., Simonet, C., Omito, E., Nyamai, C., and Saul, M., 2013, New aspects and perspectives on tsavorite deposits: Ore Geology Reviews, v. 53, p. 1-25. (I contributed in data collection, tsavorite from southern Madagascar, which was also part of my Diplome d'Etudes Approfondies, MS equivalent in Geology).

 

Voarintsoa, N. R. G., Cox, R., Razanatseheno, M. O. M., and Rakotondrazafy, A. F. M., 2012, Relation between Bedrock Geology, Topography and Lavaka Distribution in Madagascar: South African Journal of Geology, v. 115, no. 2, p. 225-250.(this is a product of a one-year research at Williams College in 2010-2011)

 

DATA CONTRIBUTION

 

Voarintsoa, N. R. G., Railsback, L. B., Brook, G. A., Wang, L., Kathayat, G., Cheng, H., Li, X., Edwards, R. L., Rakotondrazafy, A. F. M., and Madison Razanatseheno, M. O., 2017. Madagascar Holocene Stalagmite Stable Isotope Data. https://www.ncdc.noaa.gov/paleo/study/22970.


Voarintsoa, N.R.G.; Wang, L.; Railsback, L.B.; Brook, G.A.; Liang, F.; Cheng, H.; Edwards, R.L., 2017. Anjohibe Cave, Madagascar 370 - 1300 CE Stalagmite MA3 Stable Isotope Data. https://www.ncdc.noaa.gov/paleo-search/study/22910.

 

Voarintsoa, Ny Riavo G., George A. Brook, Fuyuan Liang, Eugene Marais, Ben Hardt, Hai Cheng, R. Lawrence Edwards, and L. Bruce Railsback, 2016, Dante Cave, Namibia 550 Year Stalagmite Stable Isotope Data. NOAA National Climatic Data Center, https://www.ncdc.noaa.gov/paleo/study/20433

 

OTHERS

 

Voarintsoa, N.R.G., 2018. Understanding the Holocene paleoenvironmental changes in Madagascar using stalagmites. International Association of Sedimentologists Newsletters no. 271-272, p. 87-88. (ISSN 2294-4931) 

 

Voarintsoa, N.R.G., 2017. Investigating stalagmites from NE Namibia and NW Madagascar as a key to better understand local paleoenvironmental changes and implications for inter-tropical convergence zone (ITCZ) dynamics. PhD Thesis. University of Georgia. [https://athenaeum.libs.uga.edu/handle/10724/37051]

 

Voarintsoa, N.R.G., 2011.  Le grenat vert de la région de Gogogogo (Sud de Madagascar). Diplome D'Etudes Approfondies (Masters Thesis). University of Antananarivo. A Thesis  under the project "Caractérisation géologique et gemmologique des ‘tsavorites’ de Madagascar"  between the Département des Sciences de la Terre of the Faculté des Sciences and UMR234 of Institud de Recherches pour le Développement.

 

 

ABSTRACTS FOR CONFERENCE PRESENTATION

 

* denotes oral presentation; ** denotes poster presentation

 

** Voarintsoa, N. R. G., Matero, I. S. O., Gregoire, L.J., L. Railsback, L. B., Tindall, J.C., Sime, L. C., Cheng, H., Edwards, R. L., Brook, G. A., Kathayat, G., Li, X., Rakotondrazafy, A. F. M., and Madison Razanatseheno, M. O.,2018. Stalagmite records and model simulation indicating wet conditions in northwestern Madagascar during the 8.2 ka event. AGU-Ocean Sciences Meeting. Session no.PC34B: Meridional Overturning Circulation Dynamics in Past Warm and Cold Climates Posters. PC34B-0640

 

* Voarintsoa, N. R. G., Railsback, L. B., Brook, G. A., Wang, L., Kathayat, G., Cheng, H., Li, X., Edwards, R. L., Rakotondrazafy, A. F. M., and Madison Razanatseheno, M. O., 2017. Mutiproxy evidence of a wet 8.2 ka event revealed in NW Madagascar: Linkage to latitudinal shifts of the Inter-Tropical Convergence Zone and the Atlantic Meridional Overturning Circulation. Climate Change: The Karst Record 8. University of Texas in Austin, USA

 

Voarintsoa, N.R. G., Wang, L., Railsback, L.B., Brook, G.A., Liang, F., Cheng, H., Edwards, R.L., 2017, Stalagmites and their uses in paleoenvironmental reconstruction, Interdisciplinary Research and Ideas Symposium (IRIS), Session Period 3: Pre-Fabricated Environment, University of Georgia.

 

* Voarintsoa, N.R.G., 2016, Distinct early-, mid-, and late-Holocene climate in NW Madagascar: evidence from two stalagmites, Southern Hemisphere Assessment of PalaeoEnvironments (SHAPE) International Focus Group Workshop: Southern Hemisphere climate of the present and past, Universidad de Chile, Santiago.

 

* Voarintsoa, N.R.G., 2016, Stalagmite δ13C changes and vegetation cover change in northwestern Madagascar. Geological Society of America Abstracts with Programs. Vol. 48, No. 7. doi: 10.1130/abs/2016AM- 287917 

 

** Voarintsoa, Ny Riavo G., L. Bruce Railsback, George A. Brook, Lixin Wang, Fuyuan Liang, Hai Cheng, R. Lawrence Edwards, 2015, Late Holocene (ca. AD 370-1210) ecosystem changes inferred from a stalagmite from northwestern Madagascar: the role of the ITCZ and human activity, American Geophysical Union, Fall Meeting 2015, abstract #PP51A-2249.

** Voarintsoa, Ny Riavo G., George A. Brook, Fuyuan Liang, Eugene Marais, Hai Cheng, R. Lawrence Edwards, and L. Bruce Railsback, 2015, Stronger Monsoon during southward migration of the ITCZ recorded in a Namibian stalagmite. Monsoons and the ITCZ: the annual cycle in the Holocene and the Future, Columbia University, Sept 2015

** Voarintsoa, Ny Riavo G., L. Bruce Railsback, Xianglei Li, Gayatri Kathayat, Hai Cheng, George A. Brook, and R. Lawrence Edwards, 2015, Stalagmite records revealing extensive drier period in northwestern Madagascar between the early and late Holocene (8-1.5 ka B.P.), Summer School on Speleothem Science, Department of Earth Sciences, University of Oxford, Aug 2015.

 

** Voarintsoa, N.R.G., Railsback, L.B., Liang, F., Brook, G.A., Cheng, H., Edwards, R.L., 2014, Control of solar radiation over climate variability in Southern Africa: isotopic and petrographic evidence from Namibia and Botswana stalagmites. Geological Society of America, Abstracts with Programs, vol. 46, No. 6, p. 126.

 

** Voarintsoa, N.R.G., Railsback, L.B., Liang, F., Brook, G.A., Cheng, H., Edwards, R.L., 2013,Evidence of past climate change in the Little Ice Age and of the Pacific Decadal Oscillation periodicity in Africa: comparison between two neighbor stalagmites from Namibia and Botswana (preliminary results). American Geophysical Union, Fall Meeting 2013, abstract # PP31B-1864.

 

** Voarintsoa, N.R.G., Madison Razanatseheno, M.O., Rakotondrazafy, A.F.M., Giuliani, G., 2013, Mineralogy, Geochemistry, and Petrology of a new green grossular garnet ("tsavorite") found in Madagascar, and its tectonic implication. Geological Society of America, Abstracts with Programs, vol. 45, No. 7, p. 538.

 

** Voarintsoa, N.R.G., Cox, R., Madison Razanatseheno, M.O., Rakotondrazafy, A.F.M., 2012, Investigating the role of bedrock geology and slope in controlling lavaka (gully) distribution in Central Madagascar. Geological Society of America, Abstracts with Programs, vol. 44, No. 7, p. 417

 

 

OTHERS

 

Article in Research Features, December 2018, "Stalagmite reveals climate changes clues in northeast Namibia, Africa"

 

Article in UGA Today, August 2015

 

Article in International Innovation, June 2012

 

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