Shale formations

fossil-bearing rock formation in the Canadian Rockies

series of Early Cambrian deposits in the Chiungchussu Formation

assemblage of Devonian rocks in Great Britain, Ireland, Norway and northeastern North America, consisting of sedimentary rocks including reddish sandstone

geological formation in Mongolia

geological formation in Tanzania

marine geological formation which crops out in the southeast of England

rock formation in the Kimberley region of Western Australia

geological formation in China

geological formation in Australia

geological formation in Mexico and the United States of America

Burgess shale-type deposits

sedimentary rock

shale mountains in Azerbaijan

geologic formation in India

geological formation in Great Britain

geologic formation in southern, eastern and western England and parts of South Wales

Late Cretaceous sedimentary rock formation in Madagascar

geological formation in Brazil

geologic formation in Brazil

geological formation in South Australia

Oil-bearing rock formation in Russia

geological formation in Argentina

geologic formation in China

stratigraphic Unit in Inner Mongolia

geologic formation in Kazakhstan

mass extinction event that occurred at the end of the Famennian epoch in late Devonian

fossil site from Belgium

geological formation in Mongolia

geological formation and major fossil site in Antarctica

geological formation in Argentina

is part of the Tertiary Niger Delta (Akata-Agbada) petroleum system located in the Niger Delta Province, of Nigeria at the Gulf of Guinea

Triassic/Jurassic geological group in the Karoo Supergroup in South Africa

formation in Uruguay

Mudstone and evaporite dominated lithostratigraphic unit of the Germanic Triassic