Upper Triassic

Upper Triassic

[′əp·ər trī′as·ik]
(geology)
The latest epoch of the Triassic period of geologic time, beginning about 200 million years ago.
References in periodicals archive ?
The secondary exploration target was for investigating additional resources in Lower to Middle Jurassic reservoir rocks (the Statfjord and Brent Group) and Upper Triassic reservoir rocks (the Lunde formation).
Dominant rock types at Grizzly Central, and elsewhere throughout the property, are related to the Late Triassic-Early Jurassic Kaketsa intrusions and their host volcanic rocks, the Upper Triassic Stuhini Group.
RKF is in Upper Triassic TAGI and Carboniferous shale reservoirs.
A Triassic timescale dilemma: K-Ar dating of Upper Triassic mafic igneous rocks, eastern USA and Canada and post-Upper Triassic plutons, western Idaho, USA.
John: The Middle to Upper Triassic Liard Formation, the Upper Triassic Charlie Lake Formation; and the Upper Jurassic to Lower Cretaceous Monteith Formation and Lower Cretaceous Monach Formation of the Minnes Group are the most prospective bedrock units assessed for potential frac sands in the province (Hickin and others, 2010).
Commenced drilling of the Koba-1 well, targeting Lower Liassic and Upper Triassic clastic reservoirs.
The second category includes the volcanic--sedimentary rocks of lava type, radiolarites, pelagic lime stones, flysch and turbidities that are belong to a time span from upper Triassic to upper Cretaceous and have been formed after Pridotites.
These bones are from the Upper Triassic period, and are approximately 200-210 million years old.
The family Xenopteridae was described by Riek (1955) for a tegmen from the Upper Triassic of Australia.
The island, which is accessible to the public, is close to the site of the only upper triassic dinosaur footprint found in the UK and is a haven for plants not usually found in the area, including the rare bee orchid, marine spleenwort and the adders tongue fern.
The island, which is accessible to the general public, is close to the site of the only Upper Triassic dinosaur footprint found in the UK and is a haven for plants not usually found in the area, including the rare bee orchid, marine spleenwort and the adders tongue fern.

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