Eocambrian

Eocambrian

[‚ē·ō′kam·brē·ən]
(geology)
Pertaining to the thick sequences of strata conformably underlying Lower Cambrian fossils. Also known as Infracambrian.

Eocambrian

 

beds of the Upper Precambrian that immediately preceded the Cambrian system (seePRECAMBRIAN). The term “Eocambrian” was introduced by the Norwegian geologist W. C. Brøgger in 1900 and was applied to the sparagmite series (seeSPARAGMITE SERIES). It became widely used in the Western European countries. The concept of the Eocambrian is not used in the USSR; the corresponding beds are called Wendian (seeWEND COMPLEX).

References in periodicals archive ?
The listostratigraphic profile of the area is represented by the Precambrian crystalline basement, and deposits of the Eocambrian, Cambrian, Ordovician, Silurian, Zechstein (Permian), Triassic, Jurassic, Cretaceous and Cenozoic periods.
Within the study area the Kalabagh Fault juxtaposes the Indian shelf sequence underlain by Eocambrian evaporites against deposits of the Indus River forming west verging folds and northeast dipping thrust and normal faults.
Previous studies of the Kalabagh Fault or KFZ in the vicinity of the Kalabagh Hills suggests that the Kalabagh Fault Zone truncates folds and thrusts in Eocambrian to Quaternary sedimentary rocks cropping out near Kalabagh (Mc Doughall and Khan, 1990).
The sedimentary sequence of the Indian Plate is exposed in SRPFB of Eocambrian to Cenozoic age.
The Salt Range and Potwar Plateau are the external and the most recent expression of Himalayan shortening; a thin skinned fold-and-thrust belt in which Paleozoic to Holocene sediments are shortened above a ductile substrate of thick Eocambrian evaporites of the Salt Range Formation (Lillie et al.
The Eocambrian to Cenozoic sedimentary sequence of the Indian Plate is exposed in SRPFB.
The thrust sheet has a flat-ramp-flat geometry extending over about 90 km and riding over a cushion of EoCambrian evaporites.