1∶50 000 Geological Map Spatial Database of Guye Mapsheet, 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.