There was probably an upwelling system at the beginning of the Valanginian.
The holotype, BMNH R.291, was found in a layer of the Hastings Sand, sandstone dating from the Valanginian - Hauterivian.
In the case of the Valanginian Marl, 5 different mineralogical compositions and two types of groundwater are distinguished.
The heterogeneity of the crystalline basement and the Valanginian Marl in terms of sorption properties is documented in several datasets.
The Valanginian is characterized by a δ13C positive incursion, outlining an increase in productivity that started in the Campylotoxus zone and reached its maximum in the Verrucosum zone.
Puncture a small, thumb-tack-sized hole on the side of the can, near the top.
Designed to test Lower Cenomanian and Albian reservoirs charged from the deeper Valanginian – Neocomian source, the Hippocampe–1 well was drilled to a total depth of 5,500 meters.
Since sorption measurements for the different rock types occurring in the crystalline basement and the Valanginian Marl are somewhat lacking, reference was made primarily to sorption data for the individual rock-forming minerals.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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