zkg0713
幼苗
共回答了18个问题采纳率:94.4% 举报
Xintian, located in the District of Jiahe in Hunan Province on the north side of the middle.This paper studies the geological section in Xintian county and Jiahe County Rural Ji towns and villages.First introduced to the region's natural geographical conditions and geological profiles, and then through the section of field observation analysis conclusion.A detailed description of the Huang Gongtang of Xintian county and Jiahe County Rural Shi Guyuan profile profile.From macroscopical on look, the study area mainly composed of limestone, marl, dolomite, shale and mudstone, part of the layers with breccia, crystalline limestone, siliceous rock.According to the features of the lithologic features of the Devonian strata bottom is divided into easy Chichiawan group, the QIZIQIAO FORMATION, Huang Gongtang group, and paint and pomegranate River group, discusses in detail each segment of the lithologic features, thickness and contact relationship.On the basis of paleontology fossil combination on the time each time stratigraphic attribution.According to the lithologic features of sedimentary structure and basic sequence and the Devonian strata sedimentary facies are divided into 3 sedimentary facies, and is subdivided into 8 subfacies.
1年前
3