搜索结果: 1-15 共查到“地球科学总论 Africa”相关记录23条 . 查询时间(0.043 秒)
Structural Organization and Tectono-Metamorphic Evolution of the Pan-African Suture Zone: Case of the Kabye and Kpaza Massifs in the Dahomeyide Orogen in Northern Togo (West Africa)
Togo Pan-African Dahomeyide Suture Zone Microstructures
2013/3/11
The Kabye and Kpaza Massifs correspond to two main granulitic suites in the suture zone of the Pan-African Dahomeyide orogenic belt, in northern Togo. The Kabye Massif is composed of an important west...
Geomechanical Characterization of Sandstones Cliffs of Segou (Senegal, West Africa) in the Madina Kouta Basin
Unconfined Compression Test-Uniaxial Compression Strength (UCT, Rc)
2013/3/7
This work presents the behavior of Segou sandstones in the laboratory and in the field conditions. Four types of sandstone are collected in the northern part of the Madina Kouta basin (eastern Senegal...
Structural Evolution of a Precambrian Segment: Example of the Paleoproterozoic Formations of the Mako Belt (Eastern Senegal, West Africa)
Kedougou Kenieba Inlier Paleoproterozoic Transpression
2013/3/7
The western part of the Kedougou Kenieba Inlier is located in the West African Craton. It consists of paleoproterozoic NE-trending elongate belts (subprovinces) of metavolcanic and granitic rocks that...
Gravity Interpretation of the Cameroon Mountain (West Central Africa) Based on the New and Existing Data
Mount Cameroon CVL Gravity Anomalies Bouguer Anomalies
2013/3/7
A new gravity survey of the Mount Cameroon area has enabled the definition of four major gravimetric do- mains, which coincide with the recognized structural units. In order to determine the nature of...
New Partnership Aims to Improve Maternal Health in Africa（图）
New Partnership Maternal Health Africa
2011/1/5
UNFPA, the United Nations Population Fund, and the Millennium Villages Project (MVP) announced an agreement today to promote universal access to reproductive health in sub-Saharan Africa in order to p...
20th Century One of Driest for Northwest Africa in 900 Years（图）
20th Century One of Driest for Northwest Africa 900 Years
2010/6/22
Some of the worst droughts to hit North Africa in the last 900 years have occurred recently—in the late 20th century—according to an analysis of tree rings that has provided the most lengthy and detai...
The TAMORA algorithm: satellite rainfall estimates over West Africa using multi-spectral SEVIRI data
The TAMORA algorithm satellite rainfall estimates West Africa multi-spectral SEVIRI data
2010/9/10
A multi-spectral rainfall estimation algorithm has been developed for the Sahel region of West Africa with the purpose of producing accumulated rainfall estimates for drought monitoring and food secu...
The Volta Basin Water Allocation System: assessing the impact of small-scale reservoir development on the water resources of the Volta basin, West Africa
Volta Basin Water Allocation System Volta
2010/2/3
In the Volta Basin, infrastructure watershed development with respect to the impact of climate conditions is hotly debated due to the lack of adequate tools to model the consequences of such developme...
Establishment of IDF-curves for precipitation in the tropical area of Central Africa-comparison of techniques and results
IDF-curves precipitation tropical area Central Africa comparison techniques results
2009/12/14
The establishment of Intensity-Duration-Frequency (IDF) curves for precipitation remains a powerful tool in the risk analysis of natural hazards. Indeed the IDF-curves allow for the estimation of the ...
Mapping of seabed morphology and shallow sediment structure of the Mauritania continental margin,Northwest Africa:some implications for geohazard potential
seabed morphology shallow sediment structure Mauritania continental margin geohazard potential
2009/12/3
Seafloor mapping of the Mauritania margin by multibeam bathymetry as well as shallow and high-resolution seismics in combination with core data has revealed a wide variety of seafloor features, which ...
Geometry of the Turkey-Arabia and Africa-Arabia plate boundaries in the latest Miocene to Mid-Pliocene:the role of the Malatya-Ovacık Fault Zone in eastern Turkey
Turkey-Arabia Africa-Arabia plate boundaries Malatya-Ovacı k Fault Zone
2009/10/22
We suggest a working hypothesis for the geometry of the strike-slip faults that formed the boundaries between the Turkish, African and Arabian plates in the latest Miocene to Mid-Pliocene (LMMP), betw...
An outlook on the Sub-Saharan Africa carbon balance
outlook Sub-Saharan Africa carbon balance
2010/1/21
This study gives an outlook on the carbon balance of Sub-Saharan Africa (SSA) by presenting a summary of currently available results from the project CarboAfrica (namely net ecosystem productivity and...
Conservation of soil organic carbon,biodiversity and the provision of other ecosystem services along climatic gradients in West Africa
Conservation soil organic carbon biodiversity ecosystem services climatic gradients
2010/1/20
Terrestrial carbon resources are major drivers of development in West Africa. The distribution of these resources co-varies with ecosystem type and rainfall along a strong Northeast-Southwest climatic...
Periodic Megadroughts Hit West Africa, Says Study--Global Warming Could Worsen Newly Seen Pattern（图）
Periodic Megadroughts West Africa Global Warming
2009/12/10
Researchers have developed the first year-by-year record of rainfall in sub-Saharan West Africa for the past 3,000 years, and identified a daunting pattern: a 30-to-60-year cycle of serious droughts t...
An understanding of the regional contributions and trends of anthropogenic carbon dioxide (CO2) emissions is critical to design mitigation strategies aimed at stabilizing atmospheric greenhouse gases....