1:1.5 million metamorphic geological map of the Tibetan Plateau and its surrounding areas

Since 2006, China Geological Survey Bureau has organized and implemented the work of "integration and comprehensive research on the basic geological survey results of the Tibetan Plateau". Based on the 1:250,000 regional geological survey on the blank area of the Tibetan Plateau and the latest research results at home and abroad, with the integration and comprehensive research, one of a series of maps, "1:1.5 million metamorphic geological map of the Tibetan Plateau and its surrounding areas" have been compiled. The map is published by the Geological Publishing House. Based on the time-space framework of the regional structure and metamorphic characteristics of the Tibetan Plateau, the metamorphic environment is analyzed according to the metamorphic (Geological) area, metamorphic (Geological) belt, metamorphic sub belt and very low-low-high greenschist facies, low-high amphibolite facies, blue schist facies, high-ultrahigh pressure eclogite facies and malite facies, the metamorphic map of the Tibetan Plateau and its surrounding areas has been compiled, and 16 high pressure-ultrahigh pressure metamorphic belts have been determined. The projection of the map is Conformal Conic Projection, the first standard latitude is 28 °, the second standard latitude is 37 °, the central longitude is 89 °, and the projection origin latitude is 26 ° north latitude. This data is obtained by scanning the paper map "Metamorphic geological map of Tibetan Plateau and its surrounding areas" with high-resolution scanner, and the sub maps have been spliced. In the process of scanning, keep the map surface as flat as possible to reduce the error. The copyright of the map belongs to the publishing house. This data can be used by researchers who are engaged in the geological and geomorphological research of the Tibetan Plateau, it can be used for the research of regional resources exploration, geological science research, construction of major engineering facilities, environmental protection and disaster prevention in the Tibetan Plateau.

0 2019-11-12

1:1.5 million geotectonic map of the Tibeant Plateau and its surrounding areas

Since 2006, China Geological Survey Bureau has organized and implemented the work of "Integration and comprehensive research on the basic geological survey results of the Tibetan Plateau". Based on the 1:250,000 regional geological survey on the blank area of the Tibetan Plateau and the latest research results at home and abroad, with the integration and comprehensive research, one of a series of maps, "1:1.5 million geotectonic map of the Tibetan Plateau and its surrounding areas" have been compiled. It is published by the Geological Publishing House. The geotectonic environment of the geological body is analyzed according to the geotectonic facies division plan (3 major facies, 18 basic facies and 36 subfacies), with the 36 geotectonic subfacies as the basic mapping unit, the geotectonic map of the Tibetan Plateau and its surrounding areas is compiled. The projection of the map is Conformal Conic Projection, the first standard latitude is 28 °, the second standard latitude is 37 °, the central longitude is 89 °, and the projection origin latitude is 26 ° north latitude. This data is obtained by scanning the paper map “1:1.5 million geotectonic map of the Tibetan Plateau and its surrounding areas” with a high-resolution scanner, and splicing the sub maps. In the process of scanning, keep the map surface as flat as possible to reduce the error. The copyright of the map belongs to the publishing house. This data can be used by researchers who are engaged in the geological and geomorphological research of the Tibetan Plateau, it can be used for the research of regional resources exploration, geological science research, construction of major engineering facilities, environmental protection and disaster prevention in the Tibetan Plateau.

0 2019-11-12

1:1.5 million geological map of Tibetan Plateau and its surrounding areas

Since 2006, China Geological Survey Bureau has organized and implemented the work of "Integration and comprehensive research on the basic geological survey results of the Tibetan Plateau". Based on the 1:250,000 regional geological survey on the blank area of the Tibetan Plateau and the latest research results at home and abroad, with the integration and comprehensive research, one of a series of maps, "1:1.5 million geological map of the Tibetan Plateau and its surrounding areas" have been compiled. The map is published by Geological Publishing House. Based on 177 1:250,000 Regional Geological Survey data, the regional strata and structure stratigraphic system are systematically determined, including 9 strata and structure stratigraphic areas, 36 strata and structure stratigraphic areas and 63 strata and structure stratigraphic areas. The lithostratigraphic division and correlation sequence of the Tibetan Plateau and its surrounding areas are established. A large number of geological records of geological evolution and uplift of the Tibetan Plateau are presented, which focus on the new discovery, new progress and new understanding of geological investigation and research. The projection of the map is Conformal Conic Projection, the first standard latitude is 28 °, the second standard latitude is 37 °, the central longitude is 89 °, and the projection origin latitude is 26 ° north latitude. This data is obtained by scanning the paper map “1:1.5 million geological map of the Tibetan Plateau and its surrounding areas” with a high-resolution scanner, and splicing the sub maps. In the process of scanning, keep the map surface as flat as possible to reduce the error. The copyright of the map belongs to the publishing house. This data can be used by researchers who are engaged in the geological and geomorphological research of the Tibetan Plateau, it can be used for the research of regional resources exploration, geological science research, construction of major engineering facilities, environmental protection and disaster prevention in the Tibetan Plateau.

0 2019-11-12

1:3 million Quaternary geological and geomorphological map of the Tibetan Plateau and its surrounding areas

Since 2006, China Geological Survey Bureau has organized and implemented the work of "Integration and comprehensive research on the basic geological survey results of the Qinghai Tibet Plateau". Based on the 1:250,000 Regional Geological Survey in the blank area of the Tibetan Plateau and the latest research results at home and abroad, through integration and comprehensive research, a series of maps of "1:3 million Quaternary geological and geomorphological map of the Tibetan Plateau and its surrounding areas" have been compiled. The map is published by China University of Geosciences Press, it comprehensively expresses basic geological information such as quaternary stratigraphic development, neotectonic activity, magmatic activity and geomorphic characteristics of the Tibetan Plateau, and objectively reflects the coupling and coordination process of stratum, structure, magmatic activity and geomorphic evolution since the uplift of the plateau in the late Cenozoic. The projection of the map is Conformal Conic Projection, the first standard latitude is 28 °, the second standard latitude is 37 °, the central longitude is 89 °, and the projection origin latitude is 26 ° north latitude. This data is obtained by scanning the paper map " Quaternary geological and geomorphological map of the Tibetan Plateau and its surrounding areas " with a high-resolution scanner. In the process of scanning, keep the map surface as flat as possible to reduce the error. The copyright of the map belongs to the publishing house. This data can be used by the researchers who are engaged in the geological and geomorphological research of the Tibetan Plateau. It is of great scientific significance to reveal the uplift process of the Tibetan Plateau and the geomorphic, neotectonic movement, stratigraphic, magmatic activity and environmental evolution since the uplift.

0 2019-11-12

1:1,000,000 geomorphological map of Western China

The landform information integration in western China was completed by a team led by Dr. Xie chuanjie, from the institute of geography, resources and environment, Chinese academy of sciences.It includes 1:400,000 national geomorphologic database and 1:100,000 western geomorphologic database. 1:400,000 geomorphologic data are "China geomorphologic map (1:400,000)" edited by LI Bingyuan and "China and its adjacent areas geomorphologic map (1:400,000)" edited by CHEN Zhiming. Scan and register the data, vectorize all the registered maps by using ArcMap software, and establish their own classification and code system. According to map spots (common staining) and symbols, geomorphic types are divided into basic geomorphic types and morphological structure types (points, lines and planes). 1:1000000 western geomorphic data is integrated and updated by digital geomorphology based on multi-source data such as remote sensing image and adopts hierarchical interpretation method.Plains and mountains;Primary geomorphic types (25 types),10 genetic types: secondary genetic types: subdivision of morphological differences. The type of geomorphic material whose composition or lithology is determined. Conducted among 16 landscape points of interpretation work, their Numbers are: 45 (Kathmandu), G - G - 46 (the) wrong, H - 44 (pli), 45 (xigaze), H - H - 46 (Lhasa), H - 47 (qamdo), 43 (Islamabad), I - I - 44 (lion spring river), 45 (change), I - I - (amdo) 46, 47 (yushu), J - I - 43 (kashi) (wada), J, J - 44-45 (JuMo), 46 (golmud), J J - - 47 (xining)

0 2019-09-14

Lithology of the deep sediment core in the midstream of the Heihe River Basin

A total of 500 meters of core (including supplemented samples) was obtained in the 550-meter deep drilling,which was carried out in Minghua Township along the midstream of Heihei River, from June to December 2013. The core of the borehole rock was cut and sampled, and the lithology characteristics of the borehole were primarily obtained.

0 2019-09-12