Based on the anatomy of the fine structure of Zhaxikang deposit, through systematic structural analysis, geophysical exploration and interpretation, combined with the shallow geochemical characteristics, the comprehensive geological geochemical geophysical exploration model and prediction index system of zhaxikang deposit are used to carry out mineral prediction, and one deep prospecting target area near zhaxikang line 54 is delineated. The deep target area of Qingmuzhu is located in the northwest of Cuonadong Xianglin area. Based on the information of geology, geochemistry and Geophysics, a beryllium tin tungsten polymetallic prospecting target area is delineated in the deep part of Qingmuzhu area. Geochemical characteristics show that there are high cumulative anomalies of lead, zinc, antimony and silver lining values in Qingmuzhu area, indicating that there are low-temperature element anomalies such as lead and zinc in this area. At the same time, the geological mapping work found several NE trending fault fracture zones on the surface of Qingmuzhu, with a width of 1-5m, filled with quartz, iron manganese carbonate and metal sulfide, indicating that there is a vein shaped lead-zinc antimony polymetallic mineralization controlled by the fault in qingmuzhu, which has similar metallogenic characteristics to Zhaxikang lead-zinc polymetallic deposit. According to the cuonadong dome extension zone, it extends northwestward and just reaches the deep part of Qingmuzhu area.
ZHANG Linkui
This data is the relevant data of biogeochemistry and stable isotope geochemistry of Qaidam Basin. This set of data is mainly based on the research means of paleontology, sedimentary strata and biogeochemistry of typical sections to explore the sedimentary, climatic and biological response of Qaidam basin to the uplift of Qinghai Tibet Plateau in Cenozoic. The data of paleontological isotope and oxygen isotope of the Dachaigou basin are the main biomarkers for the study of Paleontology in the Dachaigou basin. The preliminary research processing results show that the data quality is high
YUAN Feng
In March of 2019, scientists from Nanjing Institute of Geology and Palaeontology, CAS and Comsats University Islambad in Pakistan have a joint research in the stratigraphy in the Salt Range of Pakistan. The research goal is to reveal the Late Permian strata and faunas in the northern Tethys Himalaya region and their relationships with that of Southern Tibet. The investigated sections were done by rulers in the fieldwork and the foraminifer samples were sampled in high resolution. Totally, two sections were measured in the Zaluch Nala region, respectively Zluch Nala A and B sections. The foraminifers were cut and made into thin sections in the laboratory. All the foraminifers were identified in the microscope and form this dataset. The dataset contains the identification lists of fusulines and smaller foraminifers from the Zaluch A and B sections in Salt Range of Pakistan. The Permian strata in this region is well outcropped. It contains Amb, Wargal and Chhidru formations in ascending orders in the Zaluch Nala valley. The Amb Formation is dominated by calcareous limestone with only one fusuline Monodiexodina kattaensis. Its age is Middle Permian based on the fusuline. The Wargal Formation is dominated by middle and thin bedded limestone in the lower and nodular limestone in the upper. The Chhidru Formation is dominated by limestone and sandstone beds. The fusulines in the Wargal and Chhidru formations consists of Codonofusiella, Nankinella, Nanlingella and Reichelina with low diversity. The smaller foraminifers are dominated by Colaniella, Climacammina and Multidiscus. Those fusulines indicates a Late Permian age for the middle and upper part of the Wargal Formation and Chhidru Formation. The Salt Range region was located at northern margin of Gondwana during the Late Permian. So, in paleobiogeography, the diversity of foraminifers in the Middle and Late Permian strata in the Salt Range is lower that those in the Lhasa Block and exotic limestone blocks within the Yarlung Tsangpo Suture Zone in Tibet. But it is apparently greater that those in the Selong and Qubu regions in southern Tibet because the latter two regions is dominated purely by cold-water faunas without fusulines.
ZHANG Yichun
Zircon U-Pb dating data set of Leucogranites in wengbo area of Himalayan orogenic belt is mainly zircon dating in wengbo area, and there are 28 zircon dating samples. The rocks are mainly leucogranite and pegmatite. The zircon dating method is LA-ICPMS. The data comes from the receiving phase. The articles published by the data are SCI or Ni journals, including geology, BSA bulletin and Journal of petroleum. The data results are true and reliable. The testing units are mainly Institute of geology, Chinese Academy of Geological Sciences, national testing and Analysis Center, Chinese Academy of Geological Sciences and Institute of mineral resources, Chinese Academy of Geological Sciences. The data set can be used to study the formation age of Cenozoic magmatism in the Himalayan orogenic belt.
ZENG Lingsen , GAO Lie , YAN Lilong
The Ediacaran to early Cambrian representing the transition of Cryptozoic to Phanerozoic is one of the most important transitional periods in the earth system evolution and a hot period for the study of the origin and evolution of metazoan. Focusing on this scientific question, massive interdisciplinary studies including palaeontology, stratigraphy, geochemistry, geophysics etc. have been taken in many regions which significantly improve our understandings of this period. In the Himalaya zone, the correlative strata only have been reported and studies in a few regions in the Sub Indian Continent. The North Pakistan locating the western Himalaya is one of the adjoining areas of Tibet Plateau. For the lack of basic stratigraphic and palaeontological studies, it’s hard to confirm the exact age of the Neoproterozoic to early Cambrian strata assigned by the previous studies. Thus, for the establishment of the chronological framework in western Himalaya, it’s necessary to do more detailed investigations and sample collections to sort out the sedimentary sequence, biostratigraphy and chemostratigraphy of this interval in North Pakistan. During the expeditions in the Hazara Basin, we detailedly observed the lithostratigraphy and systematically collected samples for petrological, palaeontological and geochemical studies at Sikhar Mountain, Tarnawai Village, Salhad Village, Abbottabad Height, Sobangali, Neelor Village and Pindkhan Khel sections. The result of this preliminary investigation confirmed that the Hazara Basin deposited a relatively successive Ediacaran to early Cambrian strata.
PAN Bing
The establishment and improvement of the chronological framework of the Cenozoic strata within and around the Tibetan Plateau, are very essential and significant for revealing the history of the collision, uplift and deformation of the Tibetan Plateau. It's vital to enhance the understanding of the denudation and weathering patterns varying with time and space and find out the mechanism of the uplift and deformation of the Tibetan Plateau and its relevant effects on the regional and even global environment and climate. This data set has improved or established the chronological framework of the Cenozoic strata within and around the Tibetan Plateau, based on the magnetostratigraphy and accompanied by zircon U-Pb geochronology of the volcanics/tuffs/sedimentary tuffs or detrital rocks and/or biostratigraphy. The precisely dated sedimentary sequences include a 90-m loess sequence of the Duikang section constrained as ~8.1-3.7 Ma in the Linxia basin, several fluvial and lacustrine sequences (such as the 1890-m Dayu section with a range of ~41.8-21.5 Ma in age in the Lunpola basin, the 300-m Shuanghe section dated as ~42.7-36 Ma in the Jianchuan basin, the 252-m Caijiachong section with a range of ~47-36 Ma in the Qujing basin) and a 932-m saline lacustrine sequence with gypsolyte of the Jiangcheng section in the Simao basin whose age has identified to >112-63 Ma. All relevant experiments of the above chronology results have been conducted in the Institute of Tibetan Plateau Research, Chinese Academy Sciences, Lanzhou University, Tübingen University (Germany) , University of Texas at Austin (USA). The thermal demagnetization has been implemented using a thermal demagnetization oven and measured by a cryogenic magnetometer in a magnetically shielded room. The zircon U-Pb dating has been carried out using an inductively coupled plasma mass spectrometer with an attached laser ablation system. This data set provides an important chronological foundation for the following researches on tectonic evolution, paleoenvironment and paleoclimate. It has created a series of original theoretical achievements with widespread influence.
FANG Xiaomin , FANG Xiaomin, YAN Maodu, ZHANG Weilin, ZHANG Dawen
This section was measured in the north of the Minzhuochaka Lake in the Nagri region. We collected and studied the fusulines, conodonts and smaller foraminifers from the Strata. The conodonts are dominated by Sweetognathus and Mesogondolella species. The fusulines are dominated by Neoschwagerina, Pseudodoliolina, Mesoschubertella. The smaller foraminifers consist mainly of Pachyphloia, Langella, Palaeotextularia and Tetrataxis. From the viewpoint of conodonts, their age is Kungurian. From the viewpoint of fusulines, it suggests a Murgabian age. The coexistence of fusulines and conodonts suggests that the upper Kungurian of International Scale correspond to the Murgabian of Tethyan Scale. This has provided robust evidence to support a correct correlation between the global scale and Tethyan scale of the Permian stage. In paleobiogeography, the present of conodonts and fusulines in the section suggests that the South Qiangtang Block was in a warm-water environment during the Kungurian time. By contrast, the Kungurian faunas in the Lhasa Block are dominated by cool-water taxa without any warm-water fusulines. The discovery of both conodonts and fusulines suggest a different paleobiogeography between the Lhasa and South Qiangtang blocks during the Kungurian time.
ZHANG Yichun
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