發(fā)布時(shí)間：2019-05-06 15:02

【摘要】：邯鄲市地勢(shì)西高東低,大致以京廣鐵路為界,東部地區(qū)為山前洪沖積平原,地勢(shì)開闊平坦;西部為侵蝕剝蝕地形,山脈、丘陵、盆地相間,河谷輾轉(zhuǎn)穿越,地表形態(tài)差異很大。根據(jù)地貌特征,以太行山山前斷裂為界,目標(biāo)區(qū)可分為兩個(gè)主要地貌單元:斷裂以西為太行山山地丘陵區(qū),斷裂以東為華北平原沉積區(qū)。根據(jù)邯鄲市區(qū)鉆孔巖性、沉積相、沉積旋回、沉積物粒度特征、14C、光釋光、熱釋光測(cè)年數(shù)據(jù)和孢粉組合等資料,結(jié)合前人鉆孔資料特征,確定了巖石地層和年代地層的劃分依據(jù)和標(biāo)志,繪制了單孔綜合柱狀圖、連孔柱狀對(duì)比圖以及邯鄲市區(qū)鉆孔第四系綜合柱狀圖,提出了詳細(xì)的巖石地層和年代地層劃分和對(duì)比方案。在巖石地層方面,邯鄲市區(qū)第四系劃分為更新統(tǒng)下部固安組(Qp1g)、更新統(tǒng)中部楊柳青組(Qp2y)、更新統(tǒng)上部歐莊組(Qp3o)和全新統(tǒng)(Qh)。研究表明,邯鄲地區(qū)第四系地層的沉積由西到東逐漸變薄:根據(jù)南北向的鉆孔廊帶對(duì)比圖,西部以沖洪積相為主,沉積物發(fā)育較薄;中東部以沖湖積、河流相為主。造成這種差異主要是由于邯鄲地區(qū)地形及古地貌西高東低的原因。在年代地層方面,根據(jù)前人和本文獲得的14C、光釋光、熱釋光測(cè)年數(shù)據(jù)和孢粉組合等資料,按照目前新的第四紀(jì)地層劃分方案和劃分標(biāo)準(zhǔn),較詳細(xì)地討論了目標(biāo)區(qū)第四紀(jì)年代地層的劃分和對(duì)比。其中,更新統(tǒng)未見底,更新統(tǒng)下部(固安組)頂界0.73Ma,更新統(tǒng)中部(楊柳青組)為0.73Ma-0.128Ma,更新統(tǒng)上部(歐莊組)為0.128Ma-0.01Ma,全新統(tǒng)為0.01Ma至今的沉積。
[Abstract]:The topography of Handan city is high in the west and low in the east, roughly bounded by the Beijing-Guangzhou railway, and open and flat in the east of the mountain as the front flood alluvial plain, while the west is eroded and denuded terrain, mountains, hills, basins interphase, river valleys tossing and traversing, and there are great differences in the shape of the earth's surface. According to the geomorphologic characteristics, the target area can be divided into two main geomorphologic units: the hilly area of the Taihang Mountains to the west of the fault and the sedimentary area of the North China Plain to the east of the fault. Based on drilling lithology, sedimentary facies, sedimentary cycle, sediment particle size characteristics, 14C, photoluminescence, thermoluminescence dating data and sporopollen assemblage data in Handan city, combined with the characteristics of previous drilling data, The classification basis and symbol of lithostratigraphy and chronostratigraphy are determined, and the single-hole comprehensive column chart, the continuous hole column-like correlation map and the Handan urban borehole Quaternary comprehensive column chart are drawn. Detailed lithostratigraphic and chronostratigraphic division and correlation schemes are proposed. In terms of lithostratigraphy, the Quaternary in Handan city is divided into the lower Gouan formation (Qp1g) of the Pleistocene, the Yangliuqing formation (Qp2y) of the central Pleistocene, the Qp3o of the upper Pleistocene and the (Qh). Of the Holocene. The results show that the deposition of Quaternary strata in Handan area gradually thinned from west to east: according to the contrast map of borehole corridor belt in north-south direction, the west is dominated by alluvial facies and the sediments are thin; the middle-eastern part is dominated by alluvial lacustrine and fluvial facies. This difference is mainly due to the Handan area topography and palaeogeomorphology west high east low reason. In chronostratigraphy, according to the data of 14C, photoluminescence, thermoluminescence dating and sporopollen assemblage obtained by predecessors and in this paper, according to the current new Quaternary stratigraphic classification scheme and standard, The division and correlation of Quaternary chronostratigraphy in the target area are discussed in detail. Among them, there is no bottom in the Pleistocene, 0.73 Ma in the lower part of the Pleistocene (Gu'an formation), 0.73 Ma in the middle part of the Pleistocene (Yangliuqing formation), 0.128 Ma in the upper Pleistocene (Ouzhuang formation) and 0.128 Ma in the upper part of the Pleistocene (Ouzhuang formation). The Holocene is the deposit of 0.01Ma to the present.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P534.63

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