Coniacian


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Coniacian

[‚kän·ē′ā·shən]
(geology)
Lower Senonian geologic time.
References in periodicals archive ?
The Middle Coniacian age of the carbonate deposits is based on determined benthic foraminifera genera, species and biozones.
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 age.
In the Coniacian and Lower Santonian, sediments derived from the degraded eastern side of the graben became deposited (Jerzykiewicz, 1971; Valecka, 1988).
Loeblich and Tappan (1987) report the genus Pseudocyclammina to be from the Early Jurassic (Liassic) to the Coniacian.
01 Trace elements, ppm Ba 46 150 Cd 12 13 Pb 110 130 Cr ND 37 Cu 10 70 Ni 110 120 Zn 220 210 Sample number NLT-204 LLT-21 Coniacian Turonian Awgu shale Eze-Aku shale Oxides, wt% Si[0.
It is within the Peroniceras haasi Zone of Young (1963) and correlates with the lower Coniacian Stage.