High-resolution sequence stratigraphy of lower Paleozoic sheet sandstones in central North America: The role of special conditions of cratonic interiors in development of stratal architecture

Oxygen-isotope trends and seawater temperature changes across the Late Cambrian Steptoean positive carbon-isotope excursion (SPICE event)

“…In the Rhinehart A-1 core of central Iowa, the ~3.5‰ SPICE occurs in an ~15 m condensed interval of offshore shales, interbedded carbonates, and quartz-and glauconite-bearing nearshore carbonates of the Bonneterre and Davis Formations ( Fig. 3C) (Saltzman et al, 2004;Runkel et al, 2007).…”

Proposed stratotype for the base of the Lawsonian Stage (Cambrian Stage 10) at the First Appearance Datum of Eoconodontus notchpeakensis (Miller) in the House Range, Utah, USA

“…Consequently, the position of the base of the proposed Lawsonian Stage is well established within a number of facies-specific successions of trilobite zones and subzones. Such integrated macro-and micro-fossil data are already available from sections deposited across the full environmental spectrum from inner shelf clastics (Runkel et al 2007), across the full breadth of the carbonate platform (Miller et al 1982Westrop et al 1981;Orndorff 1988;Taylor et al 1996Taylor et al , 2009, and into off-platform successions that accumulated in deep water on both the southern (Barnes 1988, Ludvigsen et al 1989 and northern (Landing et al 1980 margins of Laurentia.…”

“…In Laurentia these faunas are known from slope facies in the USA in western Nevada , Maryland (Taylor et al 1996), New York (Landing 1993), and Vermont (Taylor et al 1991), in Yukon in western Canada (Tipnis et al 1979, Landing et al 1980, and from Newfoundland in eastern Canada (Barnes 1988). Faunas diagnostic of the Eoconodontus Zone are known in miogeoclinal carbonate platform deposits on Devon Island in arctic Canada (Nowlan 1985), North Greenland (Kurtz & Miller 1978), Alberta and Saskatchewan in western Canada (Derby et al 1972, Westrop et al 1981, Hein & Nowlan 1998, including data from drill cores, Godfrey Nowlan, written communication), Quebec in eastern Canada (Godfrey Nowlan, written communication, data from drill cores), in the USA in eastern Nevada , western Utah ; from mixed clastic-carbonate shelf deposits in Montana, Wyoming, and Colorado (Taylor & Miller, unpublished data;Myrow et al 1999Myrow et al , 2003; cratonic carbonates in Texas and New Mexico (Taylor & Repetski 1995); from carbonates deposited in the Oklahoma aulacogen (Miller et al 1982); from nearshore siliciclastic deposits in Iowa, Minnesota, and Wisconsin (Runkel et al 2007, including data from drill cores); from carbonate shelf deposits in Maryland and northern Virginia (Taylor et al 1992); and from outer-shelf deposits in New York (Landing, 1993). Outside Laurentia, faunas of the Eoconodontus Zone are known in Argentina (Heredia 1999), Australia (Nicoll & Shergold 1991), Estonia (Kaljo et al 1986, Viira et al 1987, Iran (Müller 1973, Ghaderi et al 2008, Kazakhstan (Apollonov et al 1988, Popov & Tolmacheva 1995, Dubinina 2001, Korea (Lee 2002, Lee et al 2009), Siberia (Kanygin et al 1989…”

U–Pb detrital zircon evidence of transcontinental sediment dispersal: provenance of Late Mississippian Wedington Sandstone member, NW Arkansas

“…The early Palaeozoic quartzarenites in the mid-continent, such as the Cambrian Jordan and Ordovician St. Peter Sandstones, are widespread, clean, and mature quartzarentie deposited in low-relief, cratonic settings over periods of tens of millions of years (Dott et al 1986;Runkel 1994;Runkel et al 1998Runkel et al , 2007. Compiled U-Pb detrital zircon analyses of those sandstones show a prominent Superior Province peak and small Grenville age peak with some other minor ages of the mid-continent Granite-Rhyolite, and Yavapai-Mazatzal basement terranes (Konstantinou et al 2014) (Fig.…”