共查询到10条相似文献，搜索用时 15 毫秒
1.
吾人对於某区矿脉系之发育,与矿质之富集,能找出一定则与规律,则与学术及实用方面,不无特殊意义,窃以为利用单纯地质构造关系,探求填充矿脉发育所在,其可能性稍大,但矿质之富集,条件甚多,常因所在地质情形不同,及其他复 相似文献
2.
湖南南部的地质构造,就现在所知道的,看来相当复杂,整个区域,因未经详细调查,有关的事实,似不能像湘中一带,由于田奇携先生等综合研究,已经相当明白,在继续查看湘 相似文献
3.
吾国自有地质事业以来,对於稀有矿物,少有注意,唯民国二十年,何作霖先生在丁道衡先生所采绥远铁矿内,发现两种含Ce,La,Yt之Beiyinite与Oborite,二十三年张定钊氏曾用分光分析方法,检定赣南钨锡铋钼等矿内,含有V,Re(?)U(?),Ta,Nb(?),Cr,Te,Ag,Au等元素,最近Morris氏来广 相似文献
4.
5.
一、绪言翠屏坳锰铁矿在桐梓县城东北四十里,属上坮乡,自县城至矿区,先沿川黔公路至元田壩,凡十五里,自此有二道,一自元田壩十里至上坮乡,十五里至出水孔,再八里至矿区;一自元田壩直至矿区,凡二十里,前者为大道,为经过上坮乡乡公所,设与当地有所接洽,此道较为适宜,后者为崎岖乌道, 相似文献
6.
CHEN Xuanhu DONG Shuwen SHI Wei DING Weicui ZHANG Yiping LI Bing SHAO Zhaogang WANG Ye 《《地质学报》英文版》2022,96(1):26-51
This is a review of the formation and tectonic evolution of the continental Asia in Phanerozoic.The continental Asia has formed on the bases of some pre-Cambrian cratons,such as the Siberia,India,Arabia,North China,Tarim,South China,and Indochina,through multi-stage plate convergence and collisional collages in Phanerozoic.The north-central Asia had experienced the expansion and subduction of the Paleo-Asian Ocean(PAO)in the early Paleozoic and the closure of the PAO in the late Paleozoic and early Mesozoic,forming the PAO regime and Central Asian orogenic belt(CAOB).In the core of the CAOB,the Mongol-Okhotsk Ocean(MOO)opened with limited expansion in the Early Permian and finally closed in the Late Jurassic–Early Cretaceous.The south-central Asia had experienced mainly multi-stage oceanic opening,subduction and collision evolution in the Tethys Ocean,forming the Tethys regime and Himalaya-Tibetan orogenic belt.In eastern Asia,the plate subduction and continental margin orogeny on western margin of the Pacific Ocean,forms the West Pacific regime and West Pacific orogenic belt.The PAO,Tethys,and West Pacific regimes,together with Precambrian cratons among or surrounding them,made up the major tectonic and dynamic systems of the continental Asia in Phanerozoic.Major tectonic events,such as the Early Paleozoic Qilian,Uralian,and Dunhuang orogeneses,the late Paleozoic East Junggar,Tianshan and West Junggar orogeneses,the Middle to Late Permian Ailaoshan orogeny and NorthSouth Lhasa collision,the early Mesozoic Indochina-South China and North-South China collisions,the late Mesozoic Mongolia-Okhotsk orogeny,Lhasa-Qiangtang collision,and intra-continental Yanshanian orogeny,and the Cenozoic IndoAsian,Arab-Asian,and West Pacific margin collisions,constrained the formation and evolution of the continental Asia.The complex dynamic systems have left large number of deformation features,such as large-scale strike-slip faults,thrustfold systems and extensional detachments on the continental Asia.Based on past tectonics,a future supercontinent,the Ameurasia,is prospected for the development of the Asia in ca.250 Myr. 相似文献
7.
严格言之,两次去新,于地质上均无重大收获,仅于天山南北麓地质,有局部的认识。惟由局部的认识,亦可得若干比较可靠之结论。此结论惟何,即天山两麓,中生代以後地层,发育伟大,且有一部情况特殊,实非再加以详尽研究,不足以探尽其奇胜。然此等地层中,虽有若干含有丰富之生物群,堪 相似文献
8.
答“论广西第四纪冰流遗迹” 总被引：2，自引：1，他引：1
拙著“广西第四纪冰川遗迹之初步观察”发表后,承丁骕先生予以多方讨论,提出不少的问题,并嘱仍借论评篇幅作覆,聆悉卓见,甚感兴趣,丁先生虽未亲自历境观察,但认为文中所述,有数处是不可能,以及绝不可能,余等负有文责,再作抛砖之举,一答丁先生指疑,二期就正于先进及同道,予等虽系土砖,望能引出玉来,则幸甚也。 相似文献
9.
作者自服务地质界後,首次作地层研究地点,即为湖北宜昌迄西黄陵背斜层束翼一带。行前奉命注意下古生代地层,故对该带之震旦纪至奥陶纪间各地层之岩性分层,特予致意。抗战以後辗转入川,又复获机会,二赴黔北,於金顶山下,湄潭,思南间,详研地层。暇中更曾登川南金佛,华蓥二山,对露 相似文献
10.
《Abstract of Chinese Geological Literature》2015,(2):105
<正>20151098Fu Xiaoping(Xianhu Botanical Garden of Shenzhen City,Shenzhen 518004,China);Wu Mengyin Macroalgal Fossils Discovered from the Cambrian Niutitang Formation,Jinsha,Guizhou Province,SW China(Acta Micropalaeontologica Sinica,ISSN1000-0674,CN32-1189/Q,31(2),2014,p.205-211,1illus.,1plate,1table,66refs.) 相似文献