华南地质与矿产2011，Vol.27Issue(4)：299-306,8.
湖北长阳火烧坪地区1：5万区调成果与主要进展
New Progress in 1：50 000 Regional Geological Survey in Huoshaoping, Changyang, Western Hubei Province
摘要
Abstract
Base on the International Stratigraphy Guide （2008） and working on the biostratigraphy, lithostratigraphy, event stratigraphy and chemical stratigraphy, multiple stratigraphic division and correlation sequence has been improved during 1：50 000 regional geological survey in Huoshaoping, Changyang, Western Hubei province. We studied the Lower-Middle Ordovician and Ordovician-Silurian Boundaries, and precisely compared with Huanghuachang and Wangjiawan Global Stratotype Section and Point （GSSP）, which expand- ed comparison of GSSP regionally. On the analysing of sedimentary environment, rock types and characteris- tics of rock assemblages in survey area, the authors put forward three sedimentary facies model, and identified sedimentary types and spatial distribution of Ordovician Miaopo Formation, bottom of Silurian Luoreping Formation, Carboniferous Hezhou Formation, Permian Dalong Formation and other formations. At the same time, the environmental and biologic bearing of the Early Triassic Trace fossils and ＂anachronistic facies＂ have been explored. After investigation, we established stratigraphic structural framework, clarified the tectonic evolution history, divided the structural deformation stage, investigated the relationship between geological hazards and tectonic activity. By stream sediments analysis and mineralization abnormalities check, we discovered one Pb-Zn, one V-Mo ore occurrences and two Pb-Zn source layers.关键词
地层划分对比/沉积相模式/区域地质调查/湖北长阳Key words
stratigraphic division and correlation/sedimentary facies model/regional geological survey/Changyang, Hubei Province.分类
天文与地球科学引用本文复制引用
赵小明,牛志军,涂兵,王令占,谢国刚,田洋,曾波夫..湖北长阳火烧坪地区1：5万区调成果与主要进展[J].华南地质与矿产,2011,27(4):299-306,8.基金项目
中国地质调查局国土资源大调查项目（1212010610709）.致谢：本文是集体劳动的成果,对参加野外调查的李志宏、彭轲、李旭兵、王世昌、杨文强、吴俊、方应波、刘红艳等表示衷心感谢.并以此文纪念尊敬的徐安武研究员. （）
