...R. A. Wiebe Abstract The Newark Island layered intrusion (NILI), located in the Nain anorthosite complex of Labrador, developed through a complex sequence of fractional crystallization, periodic replenishment of both basic and silicic magmas, and magma mixing. It is subdivided into a lower layered...

... peridotites: a major-element approach. F.R. Boyd. Significance of eclogitic and related parageneses of natural diamonds. N.V. Sobolev et al. Mafic cumulus processes and chemical evolution in an open magma chamber: the Newark Island layered intrusion, Labrador, Canada. G.A. Snyder and E.C. Simmons...

... near-coincident magmatism with the abutting troctolitic Newark Island and Kiglapait intrusions (see below). The Cabot Lake sheet, a gently dipping, locally diffusely layered, olivine-bearing ferrodioritic intrusion resting atop anorthosite and gneisses southwest of Voisey’s Bay, was emplaced at 1298...

... 2001 ); composite layered, troctolite, olivine gabbro, monzonite–ferrodiorite intrusions, such as Newark Island (N on Fig. 4 ; Wiebe 1988 ; Wiebe and Snyder 1993 ); and composite monzonite–ferrodiorite intrusions, such as Tigalak (T on Fig. 4 ) ( Wiebe and Wild 1983 ) and Goodnews ( Wiebe 1979...

... intrusion, Nain, Labrador (~1300 Ma) de Waard 1976 a Newark Island Layered Intrusion, Nain, Labrador (~1300 Ma) Wiebe 1988 Tigalak layered intrusion, Nain, Labrador (~1300 Ma) Wiebe and Wild 1983 Fogo Island intrusion, Newfoundland, Canada (422 Ma) Currie 2003 ; Andrew Kerr, personal...

... Compositions of olivine and plagioclase at the saturation of apatite in the mafic-ultramafic intrusions of the Emeishan large igneous province and other common layered intrusions Phases Taihe Hongge a Panzhihua b Bushveld c Skaergaard d Kiglapait e Sonju Lake, Duluth f Newark Island g...

... leucotroctolites, but no data concerning the Ni and Cu grades have been released. The 1305 Ma Newark Island layered intrusion ( Fig. 3 ) has been described in considerable detail by Weibe (1987 , 1988 ). It includes a lower layered sequence of troctolite and olivine gabbro and an upper sequence of mixed mafic...

...John H. Puffer; Karin A. Block; Jeffrey C. Steiner Abstract The Palisades Intrusive System consists of a 350-m-thick early Jurassic sill together with thinner comagmatic sills and dikes exposed within the Newark Basin of New Jersey and New York. The Palisades System is overlain by flood basalt...

... (Newark, N; Connecticut Valley, CV; New York Bight, NYB; Pomperaug, P; Long Island, LI), major Paleozoic faults and lithologic contacts, CAMP-related dikes, the postrift Long Island platform, the postrift Baltimore Canyon trough, and the East Coast Magnetic Anomaly, ECMA (from [ 50 , 52 , 53 , 60...

... and Holocene mud mantled the layered strata. Of the three major graben systems within the Gulf of Maine, the Fundy fault system is the only one which crops out on land. In several areas dipping strata and associated intrusions were traced onshore and found to correspond to known Late Triassic outcrops...

... concordia diagram of zircons from 3.5 cm thick tuff layer immediately below Triassic-Jurassic boundary, Sandilands Formation, Kunga Island. Figure 2. Position of U-Pb dated tuff layer (heavy black line) and biostratigraphy of Triassic-Jurassic boundary section on Kunga Island. Occurrences of key...

... a shallow crustal sill and the correlation of sill layers with extrusive flows: the palisades intrusive system and the basalts of the newark basin, New Jersey, U.S.A. The Journal of Geology , 117 ( 2 ): 139 – 155 . 10.1086/595663 Raup D.M. Sepkoski J.J. Jr . 1982 . Mass extinctions...

... the Kiglapait intrusion ( Morse, 1969 ), the Hettasch intrusion ( Berg, 1973 ; 1980 ), the Newark Island layered intrusion ( Wiebe, 1988 ), the Barth Island intrusion ( de Waard, 1976 ), the Jonathon Island intrusion ( Berg and Briegel, 1983 ), and the Nukasorsuktokh Island intrusion ( Davies, 1974 ); see also...

... character of Yemen and correlations with Saudi Arabia and Somalia . Precambrian Research , 105 : 357 – 369 . 10.1016/S0301-9268(00)00120-0 . Wiebe , R. 1988 . Structural and magmatic evolution of a magma chamber: the Newark Island layered intrusion, Nain, Labrador . Journal of Petrology...

... lake, Hawaii: a quick, efficient process of igneous differentiation . Geol. Soc. Am. Bull. 101 : 578 – 594 . Irvine , T. N. 1987 . Layering and related structures in the Duke Island and Skaergaard Intrusion: similarities, differences and origins . In Parsons , T. , ed. Origins...

... and Precambrian rocks are exposed up to 2000 m, in response to the marginal up-doming of the West African craton that occurred as the African plate impacted with the Eurasian plate. The earliest magmatic activity is Palaeoproterozoic to early Palaeozoic in age and is preserved as sparse mafic to silicic intrusive...

...) reported that recent Russian seismic studies have found that the North Atlantic from Rockall and the Faeroe-Iceland-Greenland Ridge to Lena Strait (west of Spitsbergen) overlies “continental” crust. However, crustal thickness is reportedly 35–40 km (to the 8.0–8.2 km/sec layer), with a 16–20-km granitic...

... and stratigraphic nomenclature of the Newark Supergroup of New Jersey and Pennsylvania : Unpub. ms. Pautot , G. , et al , 1973 , Morphology, limits, origin, and age of salt layer along South Atlantic African margin : AAPG Bull. , v. 57 , p. 1658 - 1671 . Phillips , J. D. , and D. F...

... . Wiebe R.A. 1988 . Structural and magmatic evolution of a magma chamber: the Newark Island layered intrusion, Nain, Labrador . Ibid , 29 : 239 – 269 . Wiebe R.A. 1993a . Basaltic injections into floored silicic magma chambers . EOS Transactions , American Geophysical Union, 74 : 1...

... are now present in the Newark and Culpeper remnants; only one is present in a small area in the Gettysburg remnant. The oldest formation possesses a chemical homogeneity that spans all three remnants ( Tollo and Gottfried, 1992 ); the chemical similarity between this formation and the diabase intrusive...