中国地质2011，Vol.38Issue(5)：1282-1288,7.
龙门山甘溪组谢家湾段风暴岩沉积特征及其意义
Clastic tempestite in Xiejiawan Member of Ganxi Formation within Longmenshan area and its significance
摘要
Abstract
Based on data of cross sections and observation of thin sections,the authors studied the clastic tempestite in Xiejiawan Member of Lower Devonian Ganxi Formation within Longmenshan area. Ganxi Formation is composed of clastic rocks, with the sedimentary structures developed characteristically in storm deposits, which consist of 2 types of storm deposits: distal storm flow and proximal sandy storm flow. The discovery of tempestite in Devonian Ganxi Formations is helpful to in-depth understanding of sedimentary fades in this area, which suggests that this area was located in the low latitude zone where storm deposits were developed. It can be regarded as an isochronous sign for stratigraphic division. The storm deposit has important significance for the interpretation of the palaeo -oceanography, palaeoclimate and palaeotectonics and plate motion of the Longmen Mountain.关键词
风暴岩/泥盆系/龙门山/古海洋Key words
tempestite/Devonian/Longmen Mountain/palaeo-oceanography分类
天文与地球科学引用本文复制引用
魏钦廉,郑荣才,周刚,肖玲..龙门山甘溪组谢家湾段风暴岩沉积特征及其意义[J].中国地质,2011,38(5):1282-1288,7.基金项目
国家青年基金(41002043)资助. （41002043）
