The onset of the mountain uplift in the northern Andes: A perspective based on Coniacian
to Paleocene tectono-sedimentary studies
crossmanensis is from a locality that was thought to be late Turanian but may be younger, probably not as young as Santonian (as argued by Clarke et al., 2011), but just as likely Coniacian
as late Turanian (Massoni et al., 2015).
PS-09-04 Schmidt et Coniacian
black flint, Etretat, France.
Nature: O = Oil; G = Gas Age of Reservoir: L = Lower; M = Middle; U = Upper C = Cretaceous; Co = Coniacian
; J = Jurassic; T = Triassic; Mi = Miocene; P= Paleozoic; Pa = Paleocene; S = Santonian DISTRICT 11 - DIYARBAKIR Field Operator Dscvry Nature API Wells Rsrvoir Depth(ft) Kayakoy (Shell) Perenco 1961 O 38.2 27 UC n.a.
The hydro-stratigraphic characteristics of terrains that appear in the rock mass are fairly well defined: limestone and dolostone belonging to the Coniacian
, Santonian and Campanian units which are highly permeable and are the main karstic aquifers of the region.
The preliminary studies on the lithostragraphy and depositional environment of the oil shale deposits of the Abakaliki fold belt indicated that three lithostratigraphic units, namely: Abakaliki, Eze-Aku and Awgu shales of Albian to Coniacian
ages are present.
On April 7, 2007, began work-over operations on well HEK-3, an oil and gas discovery well drilled by Sonatrach in 2004 when it tested the Cretaceous, Coniacian
limestone interval and achieved a flow of 184 barrels of oil over a four-hour period before that was suspended.
This biozone corresponds to Hattin's (1982) lithostratigraphic Marker Units 1, 2 and 3, which are collectively Late Coniacian
In the Coniacian
and Lower Santonian, sediments derived from the degraded eastern side of the graben became deposited (Jerzykiewicz, 1971; Valecka, 1988).
Conversely, Cratchley and Jones (1965) thought that it is a later deposit of thick sandstone beds which accompanied the shallowing of the Coniacian
Kluth, "Late Cretaceous (Late Turonian, Coniacian
and Santonian) petroleum source rocks as part of an OAE, Tarfaya Basin, Morocco," Marine and Petroleum Geology, vol.
age (Morales, et al., 1958) is mainly composed of black to grey calcareous shales, with intercalations of sandstones in the bottom of this.