U-Pb Ages and Sedimentary Provenance of Detrital Zircons from Eastern Hayfork Meta-argillites, Sawyers Bar Area, Northwestern California W. G. Ernst,1,* Cailai Wu,2 Min Lai,2 and Xin Zhang2 1. The factors controlling the composition of clastic sediments, and associated biases, have been extensively studied in the past and included in landmark special volumes (Johnsson and Basu, 1993;Valloni and Basu, 2003;von Eynatten et al., 2012a;Caracciolo et al., 2016a;Weltje et al., 2018) and reviews from Suttner (1974), Basu (1985aBasu ( , 1985b, Pettijohn et al. To investigate potential metamorphic sources, 18 detrital rutile samples were analysed for a total of 1,431 analyses. 11. The results reveal provenance shifts that correspond to the paleogeography of the Palawan continental terrane evolving from an accretionary complex in the Jurassic to a rifted margin in the early Cenozoic and finally to a microcontinent in the middle Cenozoic. The Alice Spring Orogeny is known to have caused extensive exhumation and syn-orogenic sedimentation in central and northern Australia, but its influence on the eastern margin of the continent remains unknown. The basin stratigraphy was subdivided into three sedimentary cycles. Quartz-rich graywackes indicate Atlantic-type continental margins. It is known that La and Th are more concentrated in silicic than basic igneous rocks. Stream-driven gravelly traction carpets are expected to produce sheet-like units of clast- to matrix-supported conglomerate, characterized by a parallel or an a(p)a(i) clast fabric. The SG approach is required to quantify lithological controls on Qs, and include it into the stream power law. The similar depositional age of all samples makes change in provenance an unlikely cause of the observed Nd model age variation. ... View the article PDF and any associated supplements and figures for a period of 48 hours. Based on comparable provenance signatures, the terrane is interpreted to have been conjugated to the northeastern South China Sea margin from the Mesozoic until the Oligocene spreading of the South China Sea. However, tectonic discrimination studies now look set to be eclipsed by techniques which exploit the characteristics of individual grains, rather than bulk populations (see below). Sedimentary provenance of the Hengyang and Mayang basins, SE China, and implications for the Mesozoic topographic change in South ChinaCraton: Evidence from detrital zircon geochronology Sediments from stable sand bars along a 40 km section of the Brahmaputra River in northern Bangladesh were analyzed for their major, trace and rare earth element contents to determine their provenance, compositional maturity, source area weathering and tectonic setting. Plate tectonics and sandstone compositions, Petrology of Holocene Sand, Peninsular Ranges, California and Baja Norte, Mexico: Implications for Provenance-Discrimination Models, Geological Society, London, Special Publications, View 2 excerpts, cites background and methods, View 2 excerpts, references background and methods, By clicking accept or continuing to use the site, you agree to the terms outlined in our. Manuscript ID: 20170061. This study examined these issues from the perspective of detrital fingerprints (including geochemistry, heavy mineral, and zircon U-Pb geochronology) of Mesozoic to Cenozoic strata from Palawan Island and basins of the northern South China Sea. Sm and Nd reservoirs within the shale change considerably with progressive diagenesis. This study highlights that deposition in sedimentary basins is not only controlled by host basin dynamics but can be fundamentally altered by extrabasinal processes and sediment supply. This hypothesis is supported by chemical comparisons. Provenance analysis is an effective method for discriminating the types of the sedimentary mother rock, restor-ing the sedimentary environment, and determining the geographic location of the mother rock district. WELTJE, D. MUNSTERMAN Subsequent milestones included Developments in Sedimentary Provenance Studies edited by A.C. Morton, S.P. Todd A classification scheme for volcanic grains, involving five classes dependent on palaeovolcanic and neovolcanic sources. Major and trace element ratios indicated the sediments represented erosional products from typical felsic upper continental crustal materials with contamination (30%-40%) from more intermediate/mafic compositions. Examples are presented for the influence of sea-level variations, littoral drift currents, dominant winds, continental glaciations, cannibalism and tectonic setting. This master thesis addresses questions of sedimentary provenance in Mandawa Basin and the offshore areas of Statoil, Bock 2. 10,000 feet have Nd model ages of 1500 - 2000 Ma. Contribution of sediment to the Drummond Basin is interpreted to have come from multiple source types: 1) contemporary volcanism (<350 Ma zircon population), 2) remobilised local Cycle 1 material (~350-360 Ma zircons), 3) igneous rocks from the basement Thomson Orogen (~350-500 Ma zircon populations; micas), and 4) recycled metasedimentary rocks from the Thomson Orogen (Pacific-Gondwanan, Grenvillean and older zircon populations; rutiles). Resemblance of the sediment compositions to mean compositions from Higher Himalaya crystalline rocks pointed to these being potential source rocks but with components from a mafic source also present. Simultaneously, the up-thrown (northern) block received sediments from more distant Archean sources in the Zimbabwe and/or Kasai cratons, (b) Hiatus in sedimentation occurred at both sites between ca. In addi-tion, this method is used to indicate the provenance direction and controlling factors of a sedimentary system. Three distinct groups are recognized on the basis of abundance: (1) quartz-poor graywackes (<15% quartz, average 58% SiO2, K2O/Na2O ≪ 1), (2) quartz-intermediate graywackes (15–65% quartz, average 68–74% SiO2, K2O/Na2O < 1), and (3) quartz-rich graywackes (> 65% quartz, average 89% SiO2, K2O/Na2O > 1). K E Y W O R D S cosmogenic nuclides dating (26 Al/ 10 Be), incipient rifting, intracratonic morphodynamics, Okavango Basin, provenance analyses (Pb, Sr, Nd isotopes). Twenty-nine samples were collected from different stratigraphic formations and multiple basin locations, allowing 4-D insights into the propagation of detrital mineral age signals across the basin. 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