Hwangju Gr
Period:
Silurian
Age Interval:
Middle Silurian
Province:
Imjingang Belt-North Korea
Type Locality and Naming
Lithology and Thickness
Mudstone and argillaceous limestone with corals, crinoids, gastropods, cephalopods, and brachiopods.
Lithology Pattern:
Clayey limestone
Relationships and Distribution
Lower contact
Underlain by the Koksan Fm.
Upper contact
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[125.79,38.65],[125.97,38.65],[126.18,38.66],[126.37,38.67],[126.46,38.68],[126.57,38.7],[126.62,38.7],[126.68,38.69],[126.82,38.68],[126.91,38.73],[127.13,38.84],[127.26,38.91],[127.32,38.98],[127.38,39.05],[127.39,39.09],[127.32,39.07],[127.28,39.01],[127.2,38.93],[127.07,38.86],[127,38.83],[126.86,38.77],[126.75,38.73],[126.72,38.71],[126.66,38.75],[126.61,38.76],[126.47,38.74],[126.13,38.7],[125.93,38.69],[125.82,38.69],[125.79,38.67],[125.79,38.67],[125.79,38.67],[125.79,38.65]]]]}}
Fossils
corals, crinoids, gastropods, cephalopods, and brachiopods.
Age
Age Span:
Beginning stage:
Middle Silurian
Fraction up in beginning stage:
0.00
Beginning date (Ma):
430.62
Ending stage:
Middle Silurian
Fraction up in the ending stage:
1.00
Ending date (Ma):
427.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Source used in workbook: Geology and Sedimentology of the Korean Peninsula.