Gobi Fm

Period:

Quaternary

Age Interval:

Pleistocene

Province:
Zaisan (Zaysan) Basin - East, Zaisan (Zaysan) Basin - Central

Type Locality and Naming

Synonym: Q1gb2

Lithology and Thickness

Polymictic conglomerates, boulder-pebble. 2.5 m thick in East Zaisan. Nearly 150 m thick in Central Zaisan where it is described as Hetero-debris gruss with admixture of separate blocks and detrital polymictic material; with week compaction.

Lithology Pattern:

Aus conglomerate

Relationships and Distribution

Lower contact

Unconformable on the Karabulak Fm (East Zaisan Basin) or Vtoroshin Fm (Central Zaisan Basin)

Upper contact

Present surface

Regional extent

GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[83.93,48.26],[84.45,48.03],[84.98,47.95],[85.39,47.97],[85.51,47.51],[85.46,47.38],[85.22,47.33],[84.8,47.34],[84.32,47.42],[84.01,47.58],[83.87,47.54],[83.83,47.42],[83.99,47.29],[84.57,47.2],[84.65,47.05],[84.4,47.04],[84.02,47.13],[83.8,47.23],[83.53,47.36],[83.36,47.5],[83.16,47.41],[82.79,47.61],[82.38,47.83],[82.2,48.07],[82.3,48.19],[82.33,48.36],[82.44,48.4],[82.71,48.35],[82.84,48.41],[82.91,48.64],[83.19,48.7],[83.56,48.55],[83.93,48.26]]]]}}

Fossils

Age

middle and late Pleistocene (Calabrian to present)

Age Span:

Beginning stage:

Calabrian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

1.80

Ending stage:

Holocene

Fraction up in the ending stage:

1.0

Ending date (Ma):

0.00

Depositional setting

Depositional pattern:

Additional Information

Compiler:

Information provided by Nariman Jamikeshev from Kazakh-language sources and from other publications.