Home Multi-Country Search About Admin Login
Cenozoic
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Neoproterozoic
Mesoproterozoic

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
Shiqianzhuang Formation
Click to display on map of the Ancient World at:
Shiqianzhuang Fm base reconstruction

Shiqianzhuang Fm

Period: 
Cretaceous

Age Interval: 
Early Cretaceous, K1sqz (27a,b,c)


Province: 
Shandong

Type Locality and Naming

The Shiqianzhuang Formation was named by Du Benming et al. (1991). The section for the designation is at the Shiqianzhuang Village of Xiguoxiang of Jiaozhou City, Shandong.


Lithology and Thickness

Jiaolai Basin. This formation is a group of volcanic eruptive deposits. It is composed of rhyolitic breccias, tuff and rhyolite, with dacite and trachyte on the top. It is dominated by acid rocks.

[Figure: Rhyolite of Shiqianzhuang Formation underlies unconformably reddish sandstone and siltstone of Linjiazhuang Formation near SunjiaKuang Village of Laiyang.]


Lithology Pattern: 
Volcanics


Relationships and Distribution

Lower contact

The formation overlies conformably or eruptive unconformably on the Bamudi Fm.

Upper contact

It is covered conformably by the Fanggezhuang Fm or disconformably by the Linjiazhuang Fm.

Regional extent

The formation occurs in the Wulian-Chengyang area, and Laiyang, Laixi and Guocheng in the Laiyang basin.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[120.81,37.3],[120.97,37.26],[120.99,37.2],[121.07,37.11],[121.27,37.2],[121.31,37.04],[121.21,36.9],[121.07,36.8],[120.84,36.59],[120.59,36.35],[120.26,35.98],[119.57,35.54],[119.12,35.16],[118.95,35.03],[118.94,34.85],[118.91,34.61],[118.87,34.32],[118.76,34.16],[118.56,34.05],[118.46,34.08],[118.39,34.27],[118.41,34.42],[118.44,34.73],[118.45,34.9],[118.47,35.15],[118.49,35.46],[118.57,35.76],[118.69,36.09],[118.84,36.23],[119,36.33],[119.22,36.27],[119.31,36.18],[119.39,36.13],[119.52,36.13],[119.69,36.18],[119.86,36.35],[120.05,36.52],[120.24,36.73],[120.47,37.04],[120.81,37.3]]]]}}

Fossils

None listed


Age 


Age Span: 

    Beginning stage: 
Aptian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
117.30

    Ending stage: 
Aptian

    Fraction up in the ending stage: 
0.7

    Ending date (Ma):  
115.66

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Wan Xiaoqiao