1∶50 000 Geological Map Spatial Database of Guye Map-sheet, Tangshan Map-sheet and Fangezhuangmeikuang Map-sheet, Hebei Province

In accordance with the ‘Standard of Digital Geological Map Spatial Database’ (DD 2006–06), the 1∶50 000 Geological Map Spatial Database of Guye Map-sheet (J50E002018), Tangshan Map-sheet (J50E003017) and Fangezhuangmeikuang Map-sheet (J50E003018), Hebei Province was completed by fully collecting previous geological data, and conducting 1∶50 000 regional geological survey of Guye Map-sheet, Tangshan Map-sheet and Fangezhuangmeikuang Map-sheet in and around Tangshan City, with 1∶50 000 geological maps compiled. Data was collected by means of remote sensing interpretation, field digital mapping, Quaternary drilling, manual shallow drilling and shallow seismic profiles. The database includes four datasets, i.e. basic element, comprehensive element, object and independent element, of which the basic element dataset includes 651 pieces of geopolygons (Quaternary, sedimentary rocks, metamorphic rocks, intrusive rocks and other area entities), 1428 geological boundaries, 194 attitudes, 562 photos, 70 data for dating (zircon U–Pb, ¹⁴C and OSL dating), and five data pertaining to Quaternary drill holes; the comprehensive element dataset consists primarily of standard frame (internal map frame); the object dataset includes 57 data on sedimentary lithostratigraphic units (including the Quaternary), two data applied to intrusive lithochronological units, faults, dikes, water region and map-sheet basic information; the independent element dataset comprises primarily angular maps, with no attributes added. The database was constructed under a stringent quality control system throughout the entire process, which ensures the authenticity, reliability and accuracy of data, thus providing reliable geological support for sustainable economic development, urban planning, construction, ecological preservation and major engineering projects in corresponding regions.