Slope-Channel Complex Fill and Overbank Architecture, Tinker Channel, Kirkgecit Formation, Turkey
Bryan T. Cronin, Hasan Çelik, Andrew Hurst, Murat Gul, Kemal Gürbüz, Adriano Mazzini, Michael Overstolz, 2008. "Slope-Channel Complex Fill and Overbank Architecture, Tinker Channel, Kirkgecit Formation, Turkey", Atlas of Deep-Water Outcrops, Tor H. Nilsen, Roger D. Shew, Gary S. Steffens, Joseph R. J. Studlick
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The Tinker channel is exposed in a series of dip and strike sections to the east of Hasret Mountain, near Elazig, in eastern Turkey (Figure 1A). The exposures are part of the exhumed northern margin of the northeast-to-southwest-oriented Elazig Basin, which has almost continuous exposures for 75 km (46 mi) in the high eastern Anatolian badlands (Cronin et al., 2005). The outcrop allows study of a series of time-equivalent stratigraphic intervals through a clastic system that propagated from the elevated middle Eocene hinterlands and narrow shelves to the north, toward the deep basin axis to the south and east. The Kirkgecit Formation is interpreted as a predominantly low net-to-gross, deep-water, slope-environment succession, which has infilled a topographically irregular basin margin, created during basin formation in a rapidly subsiding back-arc setting. Incised and entrenched slope-channel complexes contain most of the coarser grained, deep-water clastic sediment within the Kirkgecit Formation. The Tinker channel (Cronin et al., 2000b) is one of a series of such channel-complex exposures that allow detailed examination of the fill and overbank stratigraphic architecture. The main Tinker channel exposures are to the east of Hasret Mountain, 15 km (9 mi) east of the city of Elazig. The channel is located 3 km (1.8 mi) downdip of the inferred contemporaneous slope break (Karadag, Figure IB). It is the most proximal channel of a series of four slope-channel complexes (Figure 1C) that occur within the same stratigraphic interval. The Tinker channel was documented by Cronin et al. (2000b) and the architecture and chronology of the enveloping deep-water slope succession by Cronin et al. (2000a).
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Tor H. Nilsen, a red-haired Scandinavian who stood more than six feet tall, died October 9, 2005, at his San Carlos, California, home. This was after a valiant five-year fight with melanoma cancer. He was 63. His ashes were scattered at his family plot in Norway in 2006.
He was born in New York City on November 29, 1941, to Mollie Abrahamson and Nils Marius Nilsen of Mandal, Norway, and was the first of their children to be born in the United States. After graduating from Brooklyn Tech, he earned his B.S. in geology from City College of New York in 1962. While there, his prowess on the basketball court impressed a scout from the New York Knicks, but Tor went on to graduate school and earned his M.S. and Ph.D. degrees in geology from the University of Wisconsin at Madison in 1964 and 1967, respectively. His M.S. thesis was a study of Precambrian metasedimentary deposits in the Lake Superior area, and his Ph.D. thesis was a study of Devonian alluvial-fan deposits of the Old Red Sandstone in western Norway.
Dr. Nilsen’s principal expertise was in depositional systems analysis, stratigraphic analysis, and the relationships among tectonics, eustasy, and sedimentation. He began his industry career in 1967 as a research geologist with the Shell Development Company in Houston, Texas, and Ventura, California, where he worked on the tectonics and sedimentation of Tertiary shelf systems of coastal California. He subsequently spent two years with the U.S. Army Corps of Engineers as the Military