Andrew Cohen
University of Arizona, Tucson, AZ
Activity
2024
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RADIOCARBON DERIVED TIME AVERAGING OF SHELL BED ACCUMULATIONS IN LAKE TANGANYIKA: EVIDENCE FOR ANTHROPOGENIC IMPACT ON A UNIQUE HABITAT
28 D13. Recent Advances in Paleoecology/Taphonomy (Posters)Sunday, 22 September 20248:00 AM - 5:30 PMHall D
2023
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LINKED HYDROCLIMATE AND PRIMARY PRODUCTIVITY OF OFFSHORE AND NEARSHORE LAKE TANGANYIKA DURING THE MIDDLE TO LATE HOLOCENE
T167 Exploring Changes in Climate, Flora, and Fauna of Africa through the Cenozoic (Posters)Tuesday, 17 October 20238:00 AM - 5:30 PMHall B
2021
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LINKS BETWEEN LANDSCAPE AND LAKESCAPE IN EAST AFRICA, INFERENCES FOR CONSERVATION PALEOECOLOGY FROM LAKE TANGANYIKA
T172 Lacustrine Systems around the World II: In Honor of Michael RosenTuesday, 12 October 20211:30 PM - 5:30 PMPortland Ballroom 252 (Hybrid Room)
2020
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PALEOECOLOGICAL ANALYSIS OF HOLOCENE SEDIMENT CORES FROM THE SOUTHERN BASIN OF LAKE TANGANYIKA: IMPLICATIONS FOR THE FUTURE OF THE FISHERY IN ONE OF AFRICA’S LARGEST LAKES
T210 Sedimentary Records of Neogene and Quaternary Environmental Change from Eastern AfricaThursday, 29 October 20201:30 PM - 5:30 PMMeeting Rooms
2019
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TOWARDS DEVELOPING A LOWER COLORADO RIVER CORRIDOR CORING (LOCORING) PROJECT: WHAT SUBSURFACE BOUSE FORMATION SEDIMENTS CAN TELL US ABOUT LATE MIOCENE (?) AND EARLY PLIOCENE TECTONICS AND PALEOCLIMATE IN THE SOUTHWESTERN US
T134 Grand Canyon, Colorado Plateau, and Rocky Mountain Debates and Their Global Reverberations, 150 Years after Powell IMonday, 23 September 20191:30 PM - 5:30 PMRoom 221AB, North Building
2018
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WHAT CONTINENTAL SCIENTIFIC DRILLING IS TELLING US ABOUT ENVIRONMENTAL HISTORY IN E AFRICA AND IMPLICATIONS FOR HUMAN EVOLUTION
223 Human Evolution and Environmental History in Africa: 25 Years of Transformative ResearchWednesday, 7 November 20188:00 AM - 12:00 PMSagamore Ballroom 5
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PHYTOLITHS AND MICROCHARCOAL FROM THE BARINGO BASIN, KENYA, REVEAL SAVANNA DYNAMICS DURING THE PLIO-PLEISTOCENE TRANSITION
T184 Human Evolution and Environmental History in Africa: 25 Years of Transformative Research (Posters)Tuesday, 6 November 20189:00 AM - 6:30 PMHalls J-K
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400 KA YEAR RECORD OF CLIMATE VARIABILITY AROUND AFRICA AND IMPLICATIONS FOR HUMAN DISPERSALS
T184 Human Evolution and Environmental History in Africa: 25 Years of Transformative Research (Posters)Tuesday, 6 November 20189:00 AM - 6:30 PMHalls J-K
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ORBITAL CONTROL OF EUXINIA IN LAKE MAGADI OVER THE PAST 1 MILLION YEARS: MOLYBDENUM, ARSENIC, AND VANADIUM RECORDS
T184 Human Evolution and Environmental History in Africa: 25 Years of Transformative Research (Posters)Tuesday, 6 November 20189:00 AM - 6:30 PMHalls J-K
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PALEOCLIMATE RECORDS FROM AUTHIGENIC CLAYS AND ZEOLITES: EXAMPLES FROM THE PLEISTOCENE OLDUVAI GORGE, TANZANIA, AND PLIOCENE CHEMERON FORMATION, BARINGO BASIN, KENYA
T167 The Evolution of Continental Weathering through Geologic Time: Paleoclimate, Biogeochemistry, Diagenesis, and Clay MineralsTuesday, 6 November 20188:00 AM - 12:00 PMSagamore Ballroom 7
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A Δ13C RECORD FROM PLIO-PLEISTOCENE LACUSTRINE FISH FOSSILS IN THE HSPDP DRILL CORE FROM TUGEN HILLS, KENYA: IMPLICATIONS FOR FISH HABITATS AND THE TIMING AND EXTENT OF LAKE LEVEL FLUCTUATIONS
T9 Lakes through Space and Time ISunday, 4 November 20188:00 AM - 12:00 PMRoom 134
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SUBSURFACE DATA IN THE LOWER COLORADO RIVER CORRIDOR AND ITS IMPLICATIONS FOR TECTONIC MODELS OF BASIN EVOLUTION WITHIN THE PALO VERDE AND PARKER VALLEYS
64 New Insights into the Development and Evolution of the Colorado River System from Geologic Mapping (Posters)Thursday, 17 May 20188:30 AM - 4:30 PMOutdoor Tents
2017
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THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP): PROGRESS TOWARDS UNDERSTANDING THE PALEOENVIRONMENTAL CONTEXT OF HUMAN EVOLUTION IN EASTERN AFRICA
T309 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future OpportunitiesWednesday, 25 October 20178:00 AM - 12:00 PMRoom 307/308
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LAKE TANGANYIKA DRILLING: ADDRESSING WORLD-CLASS SCIENTIFIC QUESTIONS IN PALEOCLIMATOLOGY, TECTONICS, AND EVOLUTIONARY ECOLOGY IN AFRICA’S OLDEST LAKE
T309 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future OpportunitiesWednesday, 25 October 20178:00 AM - 12:00 PMRoom 307/308
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SUB-DECADAL PHYTOLITH AND CHARCOAL RECORDS FROM LAKE MALAWI, EAST AFRICA, INDICATE THAT THE TOBA SUPERERUPTION AT 75 KA WAS NOT SEVERE ENOUGH TO CAUSE A HUMAN GENETIC BOTTLENECK
T309 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future OpportunitiesWednesday, 25 October 20178:00 AM - 12:00 PMRoom 307/308
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CLIMATE VARIABILITY ACROSS THE PLIO-PLEISTOCENE TRANSITION IN EAST AFRICA AS SEEN IN AN HSPDP DRILL CORE FROM TUGEN HILLS, KENYA, AND POSSIBLE IMPLICATIONS FOR HOMININ EVOLUTION
T309 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future OpportunitiesWednesday, 25 October 20178:00 AM - 12:00 PMRoom 307/308
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TESTING HYPOTHESES FOR THE ROLE OF CLIMATE CHANGE IN HOMININ EVOLUTION USING THE GEOCHEMISTRY OF CARBONATES FROM THE EAST AFRICAN RIFT SYSTEM
T375 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future Opportunities (Posters)Wednesday, 25 October 20179:00 AM - 6:30 PMHalls 4EF
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U-TH DISEQUILIBRIUM DATING OF LAKE MAGADI CHERTS
T309 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future OpportunitiesWednesday, 25 October 20178:00 AM - 12:00 PMRoom 307/308
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ENVIRONMENTAL DYNAMICS ON AN EARLY PLEISTOCENE LAKE MARGIN: THE WTK13 CORE AT KAITIO, WEST TURKANA, KENYA
T309 Understanding African Environmental History through Continental Scientific Drilling: Past Successes and Future OpportunitiesWednesday, 25 October 20178:00 AM - 12:00 PMRoom 307/308
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IMPACTS OF EXCESS SEDIMENT DISCHARGE FROM HILLSLOPE DEFORESTATION ON POPULATIONS OF OSTRACODES ON TWO PLATFORMS IN LAKE TANGANYIKA, TANZANIA
T266 Limnogeology—Progress, Challenges, and Opportunities on Earth and Beyond: A Tribute to Beth Gierlowski-Kordesch (Posters)Tuesday, 24 October 20179:00 AM - 6:30 PMHalls 4EF
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THE SUBSURFACE EXTENT OF THE BOUSE FORMATION IN THE LOWER COLORADO RIVER CORRIDOR AND POSSIBLE TECTONIC IMPLICATIONS
T184 The Dynamics of Tectono-Sedimentary Systems During Basin Formation and Fill (Posters)Monday, 23 October 20179:00 AM - 6:30 PMHalls 4EF
2016
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THE ENIGMATIC QUATERNARY SHELL BED DEPOSITS OF LAKE TANGANYIKA, TANZANIA: A STORY OF ANTHROPOGENIC OR ENVIRONMENTAL CHANGE?
296 Sediments, CarbonatesWednesday, 28 September 20161:30 PM - 5:30 PMRoom 401
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LAKE MAGADI, KENYA: MODERN-PLEISTOCENE ANALOG FOR ALKALINE SALINE LAKE DEPOSITS
T102 Lake Deposits on Earth and Mars: In Memory of Elizabeth H. Gierlowski-KoredeschMonday, 26 September 20168:00 AM - 12:00 PMRoom 207
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QUATERNARY ENVIRONMENTS OF THE MAGADI BASIN: GEOCHEMICAL AND MICROFOSSIL STRATIGRAPHIC VARIABILITY
T42 From Outcrop to Core: Integrating Paleoenvironmental and Paleoclimatic Records across Time and SpaceSunday, 25 September 20161:30 PM - 5:30 PMRoom 207
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WHAT DO YOU DO WITH “HOMOGENEOUS” FINE-GRAINED INTERVALS?: LESSONS LEARNED FROM COMPARING FACIES AND OSTRACOD RECORDS BETWEEN CORE AND OUTCROP, WEST TURKANA, KENYA
T42 From Outcrop to Core: Integrating Paleoenvironmental and Paleoclimatic Records across Time and SpaceSunday, 25 September 20161:30 PM - 5:30 PMRoom 207
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THE SEDIMENTARY RECORD OF THE LAKE MAGADI BASIN: CORE ANALYSIS FROM HSPDP-MAG14 CORES 1A, 1C, AND 2A
T42 From Outcrop to Core: Integrating Paleoenvironmental and Paleoclimatic Records across Time and SpaceSunday, 25 September 20161:30 PM - 5:30 PMRoom 207
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ORIGINS OF MAGADI-TYPE CHERT: NEW CLUES FROM THE HSPDP LAKE MAGADI DRILL CORES
T42 From Outcrop to Core: Integrating Paleoenvironmental and Paleoclimatic Records across Time and SpaceSunday, 25 September 20161:30 PM - 5:30 PMRoom 207
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DIATOMS FROM AFAR: NOVEL SPECIES OF BACILLARIOPHYCEAE (DIATOMS) FROM THE PLIOCENE HADAR FORMATION, ETHIOPIA
17 Paleontology (Posters)Monday, 18 April 20161:30 PM - 5:30 PMIllinois Ballroom AB
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RECONSTRUCTING PALEOENVIRONMENTAL CONDITIONS FROM HYDROTHERMALLY ALTERED LACUSTRINE SEDIMENTS FROM HSPDP WEST TURKANA-KAITO CORE MATERIAL VIA COUPLED MINERALOGICAL AND GEOCHEMICAL ANALYSIS
11 Paleolimnological Reconstructions: New Insights from the Tried and True to the Unique and New (Posters)Thursday, 31 March 20168:00 AM - 5:30 PMExhibit Hall
2015
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USING PHYTOLITHS TO RECONSTRUCT EARLY PLEISTOCENE VEGETATION HISTORY FROM THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP) WEST TURKANA, KENYA, DRILL CORE
T102 Paleoenvironmental Reconstruction of Hominin Sites: New Methods, New Data, and New Insights IMonday, 2 November 20158:00 AM - 12:00 PMRoom 324
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NEW STABLE ISOTOPE RECORD FROM CHEW BAHIR, ETHIOPIA COVERING PAST 100KA
T136 Paleoenvironmental Reconstruction of Hominin Sites: New Methods, New Data, and New Insights (Posters)Monday, 2 November 20159:00 AM - 6:30 PMExhibit Hall
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LEAF WAX BIOMARKERS AS PROXIES FOR REGIONAL CLIMATE VARIATION DURING HOMININ EVOLUTION
T102 Paleoenvironmental Reconstruction of Hominin Sites: New Methods, New Data, and New Insights IMonday, 2 November 20158:00 AM - 12:00 PMRoom 324
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DEVELOPING TIMESERIES FROM COMPLEX LITHOSTRATIGRAPHIC DRILL CORE RECORDS OF ANCIENT LAKES BEDS IN EAST AFRICA: XRF RECORDS FROM THE OLORGESAILIE DRILL CORES (SOUTHERN KENYA)
T136 Paleoenvironmental Reconstruction of Hominin Sites: New Methods, New Data, and New Insights (Posters)Monday, 2 November 20159:00 AM - 6:30 PMExhibit Hall
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AUTHIGENIC MINERALS AS PALEOSALINITY INDICATOR FROM LAKE MAGADI, KENYA: BASED ON XRD ANALYSIS OF HSPDP-MAG CORE MATERIAL
T171 Paleoenvironmental Reconstruction of Hominin Sites: New Methods, New Data, and New Insights IIMonday, 2 November 20151:30 PM - 5:30 PMRoom 324
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A PLIO-PLEISTOCENE DRILL CORE FROM THE BARINGO BASIN, CENTRAL KENYAN RIFT VALLEY
T102 Paleoenvironmental Reconstruction of Hominin Sites: New Methods, New Data, and New Insights IMonday, 2 November 20158:00 AM - 12:00 PMRoom 324
2014
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THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP) DRILLING CAMPAIGNS: THE TRIALS AND TRIUMPHS OF TRYING THE UNIQUE AND NEW
T292 Paleoenvironmental Reconstruction of Hominin Sites: Techniques—From the Unique and New to the Tried and TrueWednesday, 22 October 20148:00 AM - 12:00 PM207
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PRELIMINARY PHYTOLITH RESULTS FROM THE EARLY PLEISTOCENE WEST TURKANA, KENYA, DRILL CORE OF THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP)
T292 Paleoenvironmental Reconstruction of Hominin Sites: Techniques—From the Unique and New to the Tried and TrueWednesday, 22 October 20148:00 AM - 12:00 PM207
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PRELIMINARY TOC/TIC AND GEOPHYSICAL DATA FROM TWO HSPDP DRILL CORE SITES IN KENYA, WITH IMPLICATIONS FOR PLIOCENE HOMININ PALEOENVIRONMENTS
T323 Paleoenvironmental Reconstruction of Hominin Sites: Techniques—From the Unique and New to the Tried and True (Posters)Wednesday, 22 October 20149:00 AM - 6:30 PMExhibition Hall C
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A FLUCTUATING PLEISTOCENE LAKE MARGIN: UPDATES FROM THE HSPDP WEST TURKANA KAITIO DRILL LEG
T292 Paleoenvironmental Reconstruction of Hominin Sites: Techniques—From the Unique and New to the Tried and TrueWednesday, 22 October 20148:00 AM - 12:00 PM207
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THE GEOLOGICAL, ECOLOGICAL AND PALEOCLIMATOLOGICAL SIGNIFICANCE OF “EXOTIC” CONTINENTAL OSTRACODES: RICK FORESTER’S LEGACY IN UNDERSTANDING OSTRACODE EVOLUTION IN LONG-LIVED LAKES
T263 The Legacy of Richard Forester: Seminal Contributions Towards Understanding Quaternary Climate, Continental Waters and OstracodesTuesday, 21 October 20141:00 PM - 5:00 PM114/115
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OSTRACODE-BASED FAUNAL AND STABLE ISOTOPE DATA SUGGEST A MIXED MARGINAL MARINE TO STRATIFIED LACUSTRINE WATERBODY INTERPRETATION FOR THE SOUTHERN BOUSE FORMATION, AZ
T263 The Legacy of Richard Forester: Seminal Contributions Towards Understanding Quaternary Climate, Continental Waters and OstracodesTuesday, 21 October 20141:00 PM - 5:00 PM114/115
2013
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THE HOMININ SITES AND PALEOLAKES DRILLING PROJECT (HSPDP): DOCUMENTING THE PALEOENVIRONMENTAL CONTEXT OF HUMAN ORIGINS IN EAST AFRICA THROUGH SCIENTIFIC DRILLING
T327 Paleoclimate Proxies and Evolving Human LandscapesWednesday, 30 October 20138:00 AM - 12:00 PMRoom 605
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THE MODERN RIO BERMEJO MEGAFAN, CHACO FORELAND BASIN (ARGENTINA)
T247 Sigma Gamma Epsilon Undergraduate Research (Posters)Tuesday, 29 October 20139:00 AM - 6:30 PMHall D
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INTEGRATED STRATIGRAPHIC ANALYSIS AND PETROLEUM SOURCE-ROCK POTENTIAL OF AN UNDERFILLED LAKE BASIN IN THE PUNA PLATEAU (NORTHWEST ARGENTINA)
T137 Lacustrine Basin Analysis and Petroleum Systems: Ancient Case Studies, Modern Analogs, New Frontiers (Posters)Monday, 28 October 20139:00 AM - 6:30 PMHall D
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LAKE-ESTUARY HYPOTHESIS FOR THE BOUSE FORMATION: NEW LOOK AT AN OLD PROBLEM
97 Special Session: CRevolution 2: Cenozoic Landscape Evolution of the Colorado Plateau–Rocky Mountain Region and the Carving of Grand Canyon IMonday, 28 October 20138:00 AM - 12:00 PMMile High Ballroom 4CD
2012
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A ~1.25MA CONTINUOUS RECORD OF OSTRACODE PALEOECOLOGY FROM THE AFRICAN TROPICS AT LAKE MALAWI
T7 Cenozoic Ostracode Research: Developments in Paleoclimatology, Paleohydrology, Paleoecology, and PhylogeneticsSunday, 4 November 20128:00 AM - 12:00 PM203B
2011
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A 1,200,000 YEAR PALEOECOLOGICAL RECORD FROM OSTRACODES, CHARCOAL, AND OTHER PALEOCLIMATE INDICATORS FROM LAKE MALAWI, EAST AFRICA
T132 Paleoclimate, Terrestrial Ecosystems, and Human Evolution in Africa from the Pleistocene to the PresentMonday, 10 October 20111:30 PM - 5:30 PMRoom 200FG
2010
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RECONSTRUCTION OF THE PALEOENVIRONMENTS OF LATE-QUATERNARY LAKE BONNEVILLE, UTAH BETWEEN ~60 AND 11 KA
T265 Limnogeology: Interdisciplinary Studies of Lakes and Paleolakes (Posters)Wednesday, 3 November 20108:00 AM - 6:00 PMHall D
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PALEOBIOGEOGRAPHIC CONNECTIONS BETWEEN THE AFRICAN RIFT LAKES: AN EXAMPLE FROM THE LAKE RUKWA BASIN AND IMPLICATIONS FOR THE INTRALACUSTRINE DISPERSAL OF SPECIES FLOCKS
T165 African Lakes and Paleolakes: Processes, Paleoenvironments, and PaleoclimateTuesday, 2 November 20108:00 AM - 12:00 PMMile High Ballroom 1AB
2008
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PHYSICAL EVIDENCE OF DEFORESTATION ALONG A MODERN RIFT LAKE: AN ON LAND AND NEARSHORE COMPARATIVE STUDY BETWEEN TWO WATERSHEDS AT LAKE TANGANYIKA, TANZANIA
23 Limnogeology (Posters)Friday, 28 March 20088:00 AM - 12:00 PM
2007
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EARLY LATE-PLEISTOCENE MEGADROUGHTS IN AFRICA AND THEIR ECOLOGICAL CONSEQUENCES FOR HOMO SAPIENS
T125 From Geoarchaeology and Paleoanthropology to Sedimentary Geology and Geochemistry II: A Memorial to Richard L. HayTuesday, 30 October 20078:00 AM - 12:00 PM
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PALEOECOLOGICAL EVIDENCE OF RESPONSE TO EARLY AND LATE PLEISTOCENE SEVERE CLIMATE CHANGE, LAKE MALAWI, AFRICA
T125 From Geoarchaeology and Paleoanthropology to Sedimentary Geology and Geochemistry II: A Memorial to Richard L. HayTuesday, 30 October 20078:00 AM - 12:00 PM
Date Unknown
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Lacustrine Shell Accumulations in Continental Rifts: Actualistic Examples of Depositional Style and Taphonomy from the Littoral of Lake Tanganyika, East Africa
249 Paleontology (Posters) II - Paleoecology, Taphonomy, and Traces