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Gastem, one of the Utica shale producers, has announced plans to explore for Utica Shale gas across the border in New York state. [11] The Utica shale is a black calcareous shale, from 150 to 700 feet (210 m) thick, with from 3.5% to 5% by weight total organic carbon. The Utica Shale play focuses on an area south of the St. Lawrence River ...
Oil shale formation takes place in a number of depositional settings and has considerable compositional variation. Oil shales can be classified by their composition (carbonate minerals such as calcite or detrital minerals such as quartz and clays) or by their depositional environment (large lakes, shallow marine, and lagoon/small lake settings).
Shale gas and condensate is produced from the Duvernay Formation in central Alberta using horizontal drilling and multi-stage hydraulic fracturing. [5] $2 billion was paid for leases during 2010 and 2011. Prices for land remained high as of June, 2012 despite costs of drilling being expensive. Parts of the deposit show total organic carbon of ...
The Queenston Formation is characterized by its brick-red to maroon shales which are interlaced with smaller amounts of green shale, sandstone, and limestone. [9] [12] The darker red shale is the result of the introduction of the terrestrial muddy deposits into the Queenston Delta.
The Clearwater Formation consists of primarily of black and green shale, with some interbedded grey and green sandstone and siltstone, and ironstone concretions.To the southeast of Cold Lake it includes massive hydrocarbon-bearing, glauconitic salt-and-pepper sandstones with interbedded shales.
The Burgess Shale is a fossil-bearing deposit exposed in the Canadian Rockies of British Columbia, Canada. [ 2 ] [ 3 ] It is famous for the exceptional preservation of the soft parts of its fossils. At 508 million years old ( middle Cambrian ), [ 4 ] it is one of the earliest fossil beds containing soft-part imprints.
The largest deposits are found in the remains of large lakes such as the deposits of the Green River Formation of Wyoming and Utah, USA. Large lake oil shale basins are typically found in areas of block faulting or crustal warping due to mountain building. Deposits such as the Green River may be as much as 2,000 feet (610 m) and yield up to 40 ...
The formations of the Beaverhill Lake Group were deposited in an embayment that extended from an open ocean in the present-day Northwest Territories in Canada, to North Dakota in the United States. An extensive reef complex called the Presqu'ile Barrier had developed across the mouth of the embayment, blocking it from the open ocean and ...