973 resultados para Zementation <Geologie>
Resumo:
In the Weser valley NW Hameln early diagenetic carbonate cementation is present in the upper Elsterian to Drenthe sediments. Examination of the calcite cement indicated a multiphase formation. Cementation occured mainly in vadose environment above ground-water table. This process generated predominantly brown calcite cement with a crystal size of <5 to 20pm. Next to meniscus-cement this fine-crystalline calcite forms further cements typical for vadose zone. In one layer of the „Mittelterrasse'-sediments, deposited in the late Elsterian age, a calcite cement is present, which may already have formed in the Holstein Interglacial. Cementation started in the upper-most layers of the „Mittelterrasse'-sediments in a late phase of „Mittelterrasse“-accumulation in this area. The so formed consolidated layers were deformed by the Drentheglacier. After ice melting cementation continued in at least 3 phases, creating nonluminiscent phreatic, orange to red luminiscent vadose and nonluminiscent vadose calcite cement.
Resumo:
UANL
Resumo:
UANL
Resumo:
Max Blanckenhorn
Resumo:
Max Blanckenhorn
Resumo:
Max Blanckenhorn
Resumo:
Aaron Sandler
Resumo:
fun Ab. Kaspe [[Elektronische Ressource]]
Resumo:
von Prof. Dr. Otto Reche
Resumo:
von den Professoren Jameson, James Wilson und Hugh Murray