Abstract:This 1:50 000 hydrogeological survey dataset was created as a result of the CGS (China Geological Survey) project "Hydrogeological Survey (1:50 000) of the Plain Area of the Baiyangdian Lake Basin" in 2016, building on previously collected geological information. It was prepared in accordance with industrial specifications, using data acquired through this survey by conducting a 1:50 000 hydrogeological and specifically eco-environmental geological survey in the Anxin and Xiong Counties, both located within the core planning and building region of Xiongan New Area, and by preparing a standard 1:50 000 hydrogeological map with instructions for its use. This dataset has 8 types of data, including 895 basic survey data, 22 data from combined geological field survey points, 82 data from stratum lithological boundary survey points, 540 data from hydrogeological survey points, 22 data from environmental geological survey points, 12 data on basic information from drilled boreholes, 71 data from comprehensive results of pumping tests and 2 200 data from field pictures, in total 3 844 data. This dataset has implications as a reference work that are critical to understanding hydrogeological conditions in Baiyangdian Lake and its surroundings, evaluating groundwater resources and investigating problems relating to the eco-geological environment, such as degradation of wetland ecological functions.

Abstract:For this dataset of the 1:50 000 hydrogeological map of Huojitu, multiple methods such as remote sensing, surface survey, geophysical exploration, drilling exploration as well as hydrochemical isotope tests were applied for data acquisition. The remotely sensed data interpretation of 800 km² area was successfully achieved in two phases, together with 377 surface survey points, 240 points of simultaneous-measurement of groundwater level during rain and dry seasons, 10 sets of pumping tests, 127 sets of water samples and 600 m of cumulative hydrogeological drilling footage. The level of water yield property of the Quaternary porous aquifer and the Cretaceous Luohe Formation porous fissure aquifer within the working area was refined in this dataset, filling the gap in hydrogeological information about the Jurassic Anding Formation and Zhiluo Formation. Meanwhile, secondary environmental geologic elements related to coal mining were added, and the unwatering zone of the shallow aquifer was successfully delineated for the first time. Furthermore, a groundwater circulation mode under the impact of coal mining was established, highlighting characteristics of hydrogeological survey in mine areas. This dataset provides normal support to plan, deploy and summarize hydrogeological survey in the mine areas, which is really important to guarantee national security in both energy resources and ecology.

Abstract:This dataset contains information about the locations and sampling layers of 200 groundwater samples taken in the Guanzhong Basin in 2015 as well as test results of 33 inorganic geochemical components. According to a comprehensive water quality evaluation, the samples above, if classified by water quality level, include 10 blank samples, 2 class-Ⅱ samples, 57 class-Ⅲ samples, 56 class-IV samples, and 75 class-V samples. If classified by water quality type, they include 111 fresh water samples, 71 brackish water samples, and 8 saline water samples. Samples were taken in compliance with procedures. Test results were obtained in qualified laboratory tests, so the obtained data was of a reliable quality. From the margin to the center of the Guanzhong Basin, the hydrochemical types of groundwater change from HCO₃-Ca to HCO₃-Ca·Mg·Na and then to SO₄·Cl-Na, presenting a distinct horizontal zoning character pattern. According to the water quality evaluation, the groundwater quality is poor in Guanzhong Basin at this time, with 68.9% of the groundwater unfit for drinking. Class Ⅱ and Ⅲ water is mainly distributed in some areas to the south, west, and north of the Guanzhong Basin. Class IV water is mainly distributed around the Weihe River, and in Gaoling County, Jingyang County, and Qian County. Class V water is mainly distributed throughout the counties of Dali, Pucheng, Fuping, Sanyuan and Liquan, Yanliang District and surrounding areas of Xianyang City. This dataset will provide a geochemical indicator reference for studying the cyclical evolution of groundwater in the Guanzhong Basin.

Abstract:Gahai Town, located in the Bayin River piedmont plain on the northeastern edge of the Qaidam Basin, is an area of the 1:50 000 map sheet that meets international standards. In accordance with the basic requirements of the Specification for Preparation of Hydrogeological Maps (1:50 000), which was developed under the guidance of China Geological Survey (CGS), and is to be issued and implemented, the hydrogeological map of Gahai Town is prepared in line with the needs of the development and construction of the town. Besides existing information and data, the hydrogeological map is based on the results and data obtained from the latest 1:50 000 hydrogeological survey in Gahai Town in 2016. It includes the results of borehole pumping tests (48 boreholes in total, including those drilled for this survey as well as already in existence, according to the data collected) and analytical results from analysis of water chemistry (61 water samples), isotope (12 isotope samples) and soluble salts in soil (55 soil samples) and the results of simultaneous measurement of groundwater level (68 simultaneous-measurement points). With the guidance of groundwater system and eco-hydrogeology theories, the dataset of the hydrogeological map is formed, based on the data processing of the groundwater system, hydrogeological structure, water-bearing rock formation and water yield properties, groundwater recharge-runoff-discharge condition, chemical characteristics of the groundwater, groundwater level depth and flow field, the relationship between groundwater and eco-vegetation, groundwater development and exploitation. Thus, it is possible to present massive information on the map by the combination of a master map with mosaic maps, clearly and hierarchically, providing groundwater data in a visualized and easy-to-use way for the development and exploitation of the local water resources, as well as for the protection of the local ecology and environment.

Abstract:This dataset is prepared based on the latest data obtained from a new round of hydrogeological survey with the 1:50 000 Spatial Database of Topographical Map and some data of 1:50 000 Geological Map of Laiwu City, Shandong Province, as the base map. In addition to the hydrogeological map, the dataset includes data sheets on pumping (domestic) wells, springs, boreholes, water quality analysis and calculation of water volume including 209 pumping (domestic) wells, 14 springs, 13 reservoirs, 13 long-run monitoring points (936 point-times monitoring data), 100 point-times of simultaneous-measurement of groundwater level and groundwater volume, 6 environmental geological points, and 90 sets of samples acquired (total analysis, isotope and rock). For this dataset, the platform MapGIS 6.7 is used to prepare maps, the data size is about 169 MB, and the national geodetic coordinate system CGCS 2000 and Gauss-Kruger Projection (6-degree belt) are adopted. Furthermore, not only is 2D method used to mark critical hydrogeological information in the dataset, 3D method is introduced in the master map and part mosaic maps to express relief.

Abstract:This dataset is prepared based on the data and information obtained from the survey of collapse, landslide, debris flow and engineering geology within the Yanzi River Basin, upstream of the Jialing River, in accordance with the unified standards and requirements of China Geological Survey (CGS). The data were acquired by remote sensing interpretation and surface survey as well as 3D laser scanning, low altitude aerial photography using UAV, and comprehensive geophysical exploration. The dataset contains 223 sets of landslide data, 170 sets of collapse data, 44 sets of debris flow data and 129 sets of data from specific geological engineering survey. The dataset covers the following information within the Yanzi River Basin:the basic attributes of geological hazards such as collapse, landslide and debris flow; geological environment background, development characteristics and distribution of the hazards; and engineering geological conditions inducing hazards. To guarantee the truth, accuracy and credibility of the dataset, processes such as field data acquisition, data collection and verification, data storage and review and a well-developed quality control system were adopted. Thus the dataset has comprehensively increased the accuracy of geological hazard knowledge and engineering geology survey in the Yanzi River Basin, providing an effective support for the study of the formation mechanism of collapse, landslide and debris flow and the study on zoning by susceptibility, hazard, and risk of these geological hazards. Furthermore, the dataset will provide reliable basic data necessary for the prevention and control of geological hazards within the basin.

Abstract:This dataset contains 1 996 sets of test data, obtained from 293 rock and soil samples collected from 14 engineering boreholes drilled in Luhuatai, Yinchuan Basin, in 2016. The test items include the shear strength, modulus of compressibility and grain composition of the soil mass. The exposed strata in Luhuatai is predominantly Quaternary. The boreholes reveal that, vertically, the rocks/soils are sandy gravel, fine silty sand, silty soil and silty clay, respectively, from the surface downwards; and horizontally, the western area is dominated by diluvial sand while the eastern area is mainly alluvial and eolian fine silty sand. Generally, the characteristic of the area is that the rock tends to young with finer lithological particles from west to east. The sample tests indicate that the sand and cohesive soil in Luhuatai possess high shear strength and ideal engineering geology characteristics. However, the eolian fine silty sand in the eastern area exhibits poor engineering-geological characteristics because it is prone to liquefaction of sandy soil due to poor cementation and a dispersed structure. The engineering geology drilling in Luhuatai is performed according to related specifications, where tests and analysis are all performed by nationally-certified laboratories. Therefore, the data obtained is reliable and can truly reflect the strata information and the physical and mechanical properties of the rocks and soil in Luhuatai. The data and conclusions contained in the dataset can be used as a reference for the study of the geological evolution of the Yinchuan Basin and for project construction and planning in Luhuatai.

Abstract:The Kangguertage ductile shear zone in western China is an important gold ore-controlling belt, where important deposits such as Kangguer, Matoutan and Shiyingtan are found. The West Yemaquan gold ore deposit, typical of the ductile shear zone ore-controlling type, is situated along the eastern shear zone extension-the Kushui-Yamansu ductile shear zone. A new dataset created from estimation of resources in the West Yemaquan gold ore deposit uses the geological ore block method, utilizing data on coordinates of mineral prospecting sites and results obtained from the analytic testing of samples collected during field geological survey in sites within the West Yemaquan Goldfield. All samples for the dataset were tested by national testing centers owning Level-A certificate. The qualified rates from both internal and external inspection are over 90%, indicating that the data are credible and provide important referential implications for the estimation of surrounding deposits of the same kind.

Abstract:This dataset was established based on extensive collection of information on the results from various mineral explorations in the Wumengshan Region, Southwestern China. The data are presented in three sections:mineral deposit's basic information, mineral deposit geology, and dataset codes obtained by processing mineral deposits information of different mineral species as systematic classification, extraction, summarization and refining, and data quality inspection. The attribute data information on mineral deposit include mineral deposit's number and name, mineral species, location, latitude and longitude, genetic type of deposit, paragenetic deposit, associated deposit, deposit scale and formation age, etc.. The data represent exploration results from 2013 to 2016, covering 27 mineral species and 1,834 mineral deposits. The data information on mineral deposit geology include mineral deposit's number, geotectonic location, litho-stratigraphic unit, intrusive rock, volcanic rock, metamorphic rock, geological structure feature and alteration of wall rock, etc. for 769 mineral deposits. The data information on dataset codes include mineral species, Level-Ⅲ and Level-IV metallogenic belts, genetic type of deposit, deposit scale, geological work level, and exploration intensity, etc.. This dataset contains abundant and credible data for a wide range of mineral species, providing important fundamental reference data for subsequent in-depth mineral resource evaluation, geological scientific research and mineral development deployment over the region.

Abstract:Mina Pirquitas, situated in the Andes Mountain of northwest Argentina, and within the Cenozoic Cu (Au) and polymetal metallogenic belt, is a part of Andes metallogenic belt. The region is diverse in lithology, well developed in volcanic and intrusive rocks, complex in geological structure, advantageous in metallogenic geological conditions, and thus the most prominent distribution region of metallic mineral resources such as Au and Cu in Argentina. From 2010 to 2014, China Geological Survey (CGS) and Argentina Geological Survey (AGS) cooperated on 1:250 000 geochemistry research demonstration during which 2 470 fluvial sediment and soil samples were collected in Mina Pirquitas at a sample grain-size ranging between -10 meshes and +60 meshes and at a mean sampling density of 1.01 samples/4 km². 39 elements and oxides were analyzed with X-ray fluorescence spectroscopy, plasma-mass spectrometry, atomic fluorescence spectrometry, atomic emission spectrometry, graphite furnace atomic absorption spectrometry and ion selective electrode method, and single-element geochemical maps and comprehensive anomaly maps were plotted. A total of 487 locations with single-element geochemistry anomaly and 52 locations with comprehensive anomaly were discovered and prospective mineral areas worthy of further investigation were delineated. These data and maps are important for reference to mineral exploration, fundamental geological research, and environmental engineering in the region.

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