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United Land, Empowering Land Owners
Geologist Marcellus Shale
Terry Engelder | Click To Visit
Gary Nash |
Description: Advances in seismic and drilling technologies have put the Marcellus Formation at the fore front. Marcellus gas resources could possibly put it in the rankings of one of the largest natural gas fields. Gas producing companies have drilled, both horizontal and vertical wells in the Marcellus Formation. At present production data seems to be guarded, or unavailable.
Normalizing, Editing and Supplementing Log,Core, and Production Data from 1935 to the Present
Current Geophysics pdf
Description: Shale Gas Plays, Lower 48 States
Marcellus Formation
Utica Shale
NY - Marcellus, Utica Shales Update (pdf)
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keywords: shale plays, stratigraphy, structure, isopach, toc, marcellus, marcutica fairways, utica.
Isopach
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Description: Distribution Appalachian Basin Marcellus Formation Shale Map |
Additional Description: The Marcellus Formation, also classified as the Marcellus Subgroup of the Hamilton Group, Marcellus Member of the Romney Formation, or simply the Marcellus Shale, is a unit of marine sedimentary rock found in eastern North America. Named for a distinctive outcrop near the village of Marcellus, New York, it extends throughout much of the Appalachian Basin. The shale contains largely untapped natural gas reserves, and its proximity to the high-demand markets along the East Coast of the United States make it an attractive target for energy development.
Stratigraphically, the Marcellus is the lowest unit of the Devonian age Hamilton Group, and is divided into several sub-units. Although black shale is the dominant lithology, it also contains lighter shales and interbedded limestone layers due to sea level variation during its deposition almost 400 million years ago. The black shale was deposited in relatively deep water devoid of oxygen, and is only sparsely fossiliferous. Most fossils are contained in the limestone members, and the fossil record in these layers provides important paleontologal insights on faunal turnovers. The black shales also contain iron ore that was used in the early economic development of the region, and uranium and pyrite which are environmental hazards. The fissile shales are also easily eroded, presenting additional civil and environmental engineering challenges.
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