摘要
贵州地处扬子地块的西南部，黔中隆起广泛分布着石炭纪铝土矿。为了研究该地区铝土矿形成的古地理条件，对石炭纪地层采样并进行了古纬度研究，共在22个点上采集了定向标本215块。占地磁测量结果表明，贵州在石炭纪时处于南纬8°-14°，属于热带地区。古生物化石、岩相古地理研究也表明了该时期气候炎热和潮湿，这为贵州石炭纪铝土矿的形提供了极有利的古地理和古气候条件。
Carboniferous paleo-latitudes of the central Guizhou Province where bauxite distributes widely is reported. Two hundred and fifteen orientated samples from 22 sites in Guiyang, Luodian and Huishui areas were collected for the study. The paleomagnetic measurement results indicate that the paleolatitudes varied from about 8°S to 14°S where was tropical zone and suitable for the bauxite forming.
出处
《地球化学》
CAS
CSCD
北大核心
1998年第6期575-578,共4页
Geochimica
