Michael R Talbot
Datos Biográficos
| ID | 4121602 |
|---|---|
| NOMBRE | Michael R Talbot |
| NOMBRES | Michael R |
| APELLIDO | Talbot |
| FIRMA | TALBOT M R |
| AFILIACIONES | University of Bergen |
| VERIFICADO | No |
| TOTAL DE OBRAS | 4 |
| TOTAL DE CITAS | 17 |
| TOTAL COMO AUTOR | 4 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1981 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2007 |
| ÍNDICE H | 1 |
East African megadroughts between 135 and 75 thousand years ago and bearing on early-modern human origins
The environmental backdrop to the evolution and spread of early Homo sapiens in East Africa is known mainly from isolated outcrops and distant marine sediment cores. Here we present results from new scientific drill cores from Lake Malawi, the first long and continuous, high-fidelity records of tropical climate change from the continent itself. Our record shows periods of severe aridity between 135 and 75 thousand years (kyr) ago, when the lake's…
Mid-holocene climate change in Lake Bosumtwi, Ghana
Lake Bosumtwi is one of the most widely studied palaeoclimate archives in West Africa. Results from numerous AMS 14 C dates of samples from four piston cores from Lake Bosumtwi show that an abrupt sedimentary transition from a mid-Holocene sapropel to calcareous laminated muds occurred at about 3200 cal yr B.P. High-resolution analyses of the nitrogen isotopic composition of organic matter across this transition confirm its abrupt nature, and sug…
Stone age archaeology and environment on the Southern Accra plains, Ghana
Excavations at Asokrochona and Tema West I have uncovered an industry that has tentatively been assigned to the Sangoan. The sites were in use during a period when the climate and environment were like today's. With a change to more arid conditions between 25000 and 13500 B.P. tool types and settlement pattern changed considerably. Between 13500 and 4000 B.P. the Plains experienced a relatively humid period. Sites with a small scale flake industr…
Holocene Changes in Tropical Wind Intensity and Rainfall
Remnants of a fixed aeolian dune ridge occur along the southeast coast of Ghana, just behind the present shoreline. Aeolian sands also cover extensive areas of the Accra Plains. No dunes are present here, the sands mainly occurring as sheets which blanket an early Holocene landscape. The sediments are of mid-Holocene age and were deposited during the interval 4500 B.P.–3800 yr B.P., when the southwesterly winds were stronger than they are at pres…
Stone age archaeology and environment on the Southern Accra plains, Ghana
Excavations at Asokrochona and Tema West I have uncovered an industry that has tentatively been assigned to the Sangoan. The sites were in use during a period when the climate and environment were like today's. With a change to more arid conditions between 25000 and 13500 B.P. tool types and settlement pattern changed considerably. Between 13500 and 4000 B.P. the Plains experienced a relatively humid period. Sites with a small scale flake industr…
Holocene Changes in Tropical Wind Intensity and Rainfall
Remnants of a fixed aeolian dune ridge occur along the southeast coast of Ghana, just behind the present shoreline. Aeolian sands also cover extensive areas of the Accra Plains. No dunes are present here, the sands mainly occurring as sheets which blanket an early Holocene landscape. The sediments are of mid-Holocene age and were deposited during the interval 4500 B.P.–3800 yr B.P., when the southwesterly winds were stronger than they are at pres…
Stone age archaeology and environment on the Southern Accra plains, Ghana
Excavations at Asokrochona and Tema West I have uncovered an industry that has tentatively been assigned to the Sangoan. The sites were in use during a period when the climate and environment were like today's. With a change to more arid conditions between 25000 and 13500 B.P. tool types and settlement pattern changed considerably. Between 13500 and 4000 B.P. the Plains experienced a relatively humid period. Sites with a small scale flake industr…
Mid-holocene climate change in Lake Bosumtwi, Ghana
Lake Bosumtwi is one of the most widely studied palaeoclimate archives in West Africa. Results from numerous AMS 14 C dates of samples from four piston cores from Lake Bosumtwi show that an abrupt sedimentary transition from a mid-Holocene sapropel to calcareous laminated muds occurred at about 3200 cal yr B.P. High-resolution analyses of the nitrogen isotopic composition of organic matter across this transition confirm its abrupt nature, and sug…
East African megadroughts between 135 and 75 thousand years ago and bearing on early-modern human origins
The environmental backdrop to the evolution and spread of early Homo sapiens in East Africa is known mainly from isolated outcrops and distant marine sediment cores. Here we present results from new scientific drill cores from Lake Malawi, the first long and continuous, high-fidelity records of tropical climate change from the continent itself. Our record shows periods of severe aridity between 135 and 75 thousand years (kyr) ago, when the lake's…
Arid (4 obras) · Geography (4 obras) · Geology (4 obras) · Paleontology (4 obras) · Archaeology (3 obras) · Geology and Paleoclimatology Research (3 obras) · Oceanography (3 obras) · Physical geography (3 obras) · Pleistocene-Era Hominins and Archaeology (3 obras) · Archaeology and Rock Art Studies (2 obras)