The Tully Formation is a geologic unit in the Appalachian Basin. The Tully was deposited as a carbonate rich mud, in a shallow sea at the end of the Middle Devonian.[1] Outcrops for the Tully are found in New York State and Pennsylvania.[2] It is also found subsurface in western Maryland and northern West Virginia. A number of fossil remains from marine organisms maybe found in Tully out crops.
The Tully is primary made up of limestone. There there are also layers with much higher clay contend resulting in a calcareousshale. To the east the Tully becomes siliciclastic. This is due to sediments being washed in from the Acadian Mountains to the east. By the time the Tully was being deposited the Appalachian Basin had been nearly filled in that the Tully was deposited on a broad planform of rock.[3] The Tully ranges in thickness to less than 1' in western New York to 70'+ thick in central Pennsylvania and 90'+ thick in southwestern Pennsylvania and northern West Virginia.
^Philip H. Heckel (1963). "Depositional Environment of the Devonian Tully Limestone of Central New York: ABSTRACT". AAPG Bulletin. 47. doi:10.1306/bc7439df-16be-11d7-8645000102c1865d. ISSN 0149-1423.
^Stevenson, R. E; Skinner, W. S. (1949). "The Tully Clastics of New York and Pennsylvania". Pennsylvania Academy of Science. 23: 28–33. JSTOR 44109398.
^Baird, G.C.; Zambito, J.J.; Brett, C.E. (2012). "Genesis of unusual lithologies associated with the Late Middle Devonian Taghanic biocrisis in the type Taghanic succession of New York State and Pennsylvania". Palaeogeography, Palaeoclimatology, Palaeoecology. 367–368: 121–136. Bibcode:2012PPP...367..121B. doi:10.1016/j.palaeo.2011.11.010. ISSN 0031-0182.
tully, formation, geologic, unit, appalachian, basin, tully, deposited, carbonate, rich, shallow, middle, devonian, outcrops, tully, found, york, state, pennsylvania, also, found, subsurface, western, maryland, northern, west, virginia, number, fossil, remains. The Tully Formation is a geologic unit in the Appalachian Basin The Tully was deposited as a carbonate rich mud in a shallow sea at the end of the Middle Devonian 1 Outcrops for the Tully are found in New York State and Pennsylvania 2 It is also found subsurface in western Maryland and northern West Virginia A number of fossil remains from marine organisms maybe found in Tully out crops Tully FormationStratigraphic range DevonianTully Formation at Taughannock Falls State Park Photo credit ZigismonTypeFormationSub unitsNew YorkNew Lisbon Member Laurens Member West Brook MemberPennsylvaniaWeissport Member Brodhead Creek Member Lehighton MemberUnderliesHarrell Shale Genesee GroupOverliesHamilton GroupLithologyPrimaryLimestoneOtherShale Siltstone and SandstoneLocationRegion Maryland New York Pennsylvania West VirginiaCountryUnited StatesCanadaType sectionNamed forTully NYNamed byVanuxem 1839 Contents 1 Description 2 Fossils 2 1 Brachiopods 3 ReferencesDescription editThe Tully is primary made up of limestone There there are also layers with much higher clay contend resulting in a calcareous shale To the east the Tully becomes siliciclastic This is due to sediments being washed in from the Acadian Mountains to the east By the time the Tully was being deposited the Appalachian Basin had been nearly filled in that the Tully was deposited on a broad planform of rock 3 The Tully ranges in thickness to less than 1 in western New York to 70 thick in central Pennsylvania and 90 thick in southwestern Pennsylvania and northern West Virginia Fossils editBrachiopods edit Tullypothyridina Camarotoechia Mesocostale Rhyssochonetes Emanuella Pseudoatrypa Spinatrypa Tylothyris Mucrospirifer tulliensis Cyrtina Tullypothyridina Echinocoelia StrophodontaReferences edit Philip H Heckel 1963 Depositional Environment of the Devonian Tully Limestone of Central New York ABSTRACT AAPG Bulletin 47 doi 10 1306 bc7439df 16be 11d7 8645000102c1865d ISSN 0149 1423 Stevenson R E Skinner W S 1949 The Tully Clastics of New York and Pennsylvania Pennsylvania Academy of Science 23 28 33 JSTOR 44109398 Baird G C Zambito J J Brett C E 2012 Genesis of unusual lithologies associated with the Late Middle Devonian Taghanic biocrisis in the type Taghanic succession of New York State and Pennsylvania Palaeogeography Palaeoclimatology Palaeoecology 367 368 121 136 Bibcode 2012PPP 367 121B doi 10 1016 j palaeo 2011 11 010 ISSN 0031 0182 nbsp Geology portal nbsp Paleontology portal nbsp New York portal nbsp Pennsylvania portal Retrieved from https en wikipedia org w index php title Tully Formation amp oldid 1189418820, wikipedia, wiki, book, books, library,
