Annual Report 2011 of the South and Central American Regional Committee on Paleogene Stratigraphy

This year a new working group was set up for the South and Central American Regional Committee on Paleogene Stratigraphy. New members representing nine Latin American countries were designated as part of this group. The working group is organized as follows:
• Chairman: Juan Carlos Silva Tamayo (jsilvatamayo@yahoo.com) • Secretary: Diana Ochoa (dianita.ochoa@gmail.com) • Argentina: Ana Parras (aparras@exactas.unlpam.edu.ar) • Brazil: Tania Lindner Dutra (tdutra@unisinos.br) • Chile: Luis Felipe Hinojosa (lfhinojosa@abello.dic.uchile.cl) • Colombia: German Bayona (gbayona@cgares.org) • Costa Rica: Teresita Aguilar (aaguilar@geologia.ucr.ac.cr) • Cuba: Manuel Iturralde-Vinent (iturralde@mnhnc.inf.cu) • Mexico: Enrique Martínez-Hernández (emar@servidor.unam.mx) • Panama: Carlos Jaramillo (JaramilloC@si.edu) • Peru: Javier Jacay (j_jacay@yahoo.com).
In addition, during this year, members of the Committee promoted several activities under the framework of XIV Latin American Geological Congress. Some of these were:
Courses:
1) Taller de Palinología. Aplicaciones en Paleobiología e industria del Petróleo (Palinology workshop. Paleobiological and Petroleum industry applications). This course was delivered by Dr. Carlos Jaramillo, MSc Felipe de la Parra, and Geologist Milton Rueda. The course counted with the participation of students from several Latin American countries. 2) Course on traditional and non-traditional stable isotopes applied to geosciences. This course was delivered by Dr. Juan Carlos Silva, Dr. Alcides N. Sial, Dr. Valderez P. Ferreira, and Dr. Jaime Escobar.
Workshops:
1) Exploring scientific prospectus of the International Continental Drilling Program in NW South America. This workshop, leaded by the general secretary of the ICDP, counted with the participation of scientist from different Iberoamerican institutions suchlike Universidad de Caldas, Universidad Jorge Tadeo Lozano, Universidad de Los Andes, Universidad EAFIT, Universidad de Salamanca, Universidad de São Paulo, University of Florida, and the Colombian Petroleum Institute.
Special Symposiums:
1) Applications of traditional and non-traditional stable isotopes on paleocenography, paleoclimatology and paleobiology.
Invited talks:
Harms, U. Continental Scientific Drilling Provides Continuous Sampling Of Paleoenvironmental Archives Flores, J.A. Assessing Modifications In The Sea Surface Dynamics In The Eastern Equatorial Pacific Ocean Between 4 And 2 Ma Cruz, F. South American Monsoon Regime In The Last Two Glacial Cycles
Additional Talks:
López-Otálvaro, G.E. Coccolith Calcium Carbonate Production In The Eastern Tropical Pacific: A Paleoecological Signal For Paleoceanographic Purposes Silva-Tamayo, J.C. The Interaction Between Central And South Amerca From Sr-Isotope Chemostratigraphy Of Cenozoic Coral Reef Sucessions Ferreira, V.P. The Upper Cambrian And Ordovincian Of The Precordillera, Argentina: C- And O-Isotope Stratigraphies, Spice-Snice And Gice Anomalies Escobar Jaramillo, J.E. Isotopic Record Of Atmospheric Lead Pollution In Lake Sediments In Florida Vásquez-Bedoya , L.F. Extension Rate In Corals As A Proxy For Sst During The Last Interglacial. Buitrago-Reina, M. Late Miocene-Early Pliocene Calcareous Nannofossil Biochronology In The Western Equatorial Atlantic Ocean (Odp Site 999): A Review
Posters:
Sial, A.N. Mercury Stratigraphy: A Proxy For Volcanism In The Kt Boundary And Volcanogenic Co2 Buildup In Neoproterozoic Snowball Earth Silva-Tamayo, J.C. Multi Isotope Tracers Of Oceanic Acidification And Deoxidification During The Precambrian And The Late Permian Biologic Crisis. Silva-Tamayo, J.C. C-Isotope Age Constrains Of Aptian Marine Extension In Northrn Colombia: Pleriminary Data From The Sierra Nevada De Santa Marta Rosero Céspedes, J.S. Cronoestratigrafia Del Tortoniano-Zancleano Basada En Isótopos De Sr (Pozo Tumaco-1-St-S, Pacífico Colombiano) Ballegeer, A.M. Relevant Cooling In The South-Atlantic Linked To The Closure Of The Central American Seaway Ferreira, V.P. Epidote-Bearing Plutons And Their Tectonic Significance Barrios, L Vermetids As Archives Of Climate Change In The Tropical Eastern Pacific Saavedra Pellitero, M Coccolithophore Estimates Of Paleotemperature Changes In The Southeast Pacific Over The Past ~27 Kyr And Comparison To Alternative Proxies.
Initiatives for 2012:
Symposiums:
1) Integrating the Paleogene palynological and paleobotanical record of Southern and Central America (IPC 2012, Japan). Symposium proposal is pending for approval. 2) New advances and developments on the Paleogene Stratigraphy of Latin American basins. To be submitted before December 1st 2011 to the Geological Society of America fall meeting Committee.
Other activities:
1) The committee will try to get together the most recognized scientists working on the Paleogene sedimentary record of Latin America to construct preliminary Paleogene chronostratigraphic charts to be published on the sub-commission website. 2) The committee will update the website of the sub-commission. The new website will include a list of the most recent publications related to the Latin American Paleogene record. Publications will be divided by scientific areas such as stratigraphy, biostratigraphy, geochemistry, tectonics, basin analysis, among others. The website will include a meeting calendar and related links.

Report by Juan Carlos Silva Tamayo, Chairman.