摘要
主要分析了构造抬升对水系和地形的影响和恢复,以从古生代灰岩围岩中大面积但零星出露的岩溶砾岩点为研究对象,对区域古水系和地形地貌恢复和反演做出了新的尝试。在收集资料和实测的基础上,尝试性探讨了利用稳定水体参照物高程反演抬升高度以及邻区山峰点的古高程、古水系,恢复区域上古地形地貌的技术方法。并以白彦地区为例,通过白彦岩溶砾岩的分布、产状、金刚石矿物含量、岩性等地质特征,恢复白彦地区古地形线、古水系位置和流向等古地理地貌,指出在白彦期时代,该区总体发育4个水系,邹城市大石墙水系、枣庄水系、平邑水系、费县水系,水系中金刚石含量较为丰富的砾岩点大多分布在凤凰山隆起中心,其中在平邑水系推测存在一个山地峡谷中的古湖泊。认为蒙山凸起中已知的常马庄地区的金伯利岩脉所含有金刚石可能主要供应平邑区水系,其他3个地区水系的金刚石可能来源于凤凰山及其东部隆起剥蚀地区。
The influence and recovery of tectonic uplift on river system and topography have been analyzed in this paper. Regarding karst conglomerate points which outcropped sporadically in country rocks in Paleozoic limestone with large area as the study object, a new attempt for the restoration and inversion of regional Palaeo water system and landform has been made. On the basis of data collection and field measurement, technical methods forrecovering Palaeo topographic and paleogomorphology regionally by using elevation inversion uplift height of stable water reference materials and Palaeo elevation and Palaeo water system in adjacent area have been studied. Taking Baiyan area as an example, through analyzing the distribution, occurrence, diamond mineral content, and lithology of karst conglomerate, Palaeogeographic geomorphology, such as Palaeo topographic line, the location of the Palaeo water system and flow have been recovered. It is pointed out that four water systems have been developed in this area in Baiyan period, they are Dashiqiang water system in Zoucheng city, Zaozhuang water system, Pingyi water system andFeixian water system.Conglomerate points with rich diamond content in the water system mostly locate in the center of Fenghuangshan uplift.There is also an ancient lake in mountain canyon in Pingyi water system. It is considered that diamond contained in the Kimberley vein in Mengshan area in Mengshan uplift may mainly supply the water system in Pingyi area. The diamond in other three regions may originate from Fenghuangshan and the uplift and erosion areas in its eastern part.
作者
程光锁
于学峰
杨斌
胡戈
李兆营
周军
刘卫东
罗文强
马祥县
CHENG Guangsuo;YU Xuefeng;YANG Bin;HU Ge;LI Zhaoying;ZHOU Jun;LIU Weidong;LUO Wenqiang;MA Xiangxian(Shandong Institute of Geological Sciences,Key Laboratory of Gold Mineralization Processes and Resources Utilization Subordinated to the Ministry of Land and Resources, Shandong Key Laboratory of Geological Processes and Resource Utilization in Metallic Minerals,Jinan 250013,Shandong,China;No.7 Exploration Institute of Geology and Mineral Resources,Shandong Linyi 376006,China)
出处
《山东国土资源》
2019年第9期61-73,共13页
Shandong Land and Resources
基金
国家自然科学基金项目(41272047)
山东省重点研发计划项目(2017CXGC1607)资助成果
关键词
白彦地区
岩溶砾岩
稳定水体参照面
古地貌
金刚石物源
鲁西
Baiyan area
karst conglomerate
stable water body reference surface
ancient elevation
Palaeo water system
diamond material source
