Results 21 to 30 of about 8,027 (255)

Stable carbon isotope stratigraphy of the Silurian in the Jočionys-299 borehole (eastern Lithuania) [PDF]

Estonian Journal of Earth Sciences, 2022
In recent years it has become commonplace to formalize chemostratigraphic units and identify isotopic zones (chemo­stratigraphic units) from excursions.
Tomas Želvys, Antanas Brazauskas, Andrej Spiridonov, Mykolas Balčiūnas, Andrius Garbaras, Sigitas Radzevičius   +5 more
doaj   +1 more source

A bio-chemostratigraphical test of the synchroneity of biozones in the upper Silurian of Estonia and Latvia with some implications for practical stratigraphy [PDF]

Estonian Journal of Earth Sciences, 2015
The paper discusses the reliability of different biozones in terms of their synchroneity when crossing facies boundaries within a sedimentary basin. Graptolite biozones are the most trusted ones, but also biozones based on conodonts, chitinozoans and ...
Dimitri Kaljo, Rein Einasto, Tõnu Martma, Tiiu Märss, Viiu Nestor, Viive Viira   +5 more
doaj   +1 more source

Carbonate storm deposits and C, O isotopes of the Lagoa do Jacaré Formation (Ediacaran) in the Paraopeba area, Bambuí Group, Brazil [PDF]

Brazilian Journal of Geology, 2022
A section investigated in the region of Paraopeba, Minas Gerais, provided detailed sedimentologic, stratigraphic and chemostratigraphic data from the Ediacaran Lagoa do Jacaré Formation, Bambuí Group, Southeast Brazil.
Marcio Vinicius Santana Dantas, Alexandre Uhlein, Gabriel Jubé Uhlein, Alex Rodrigues de Freitas, Thaís Keuffer Mendonça, José Arthur Oliveira Santos, Samuel Amaral Moura Silva   +6 more
doaj   +1 more source

High‐Dimensional Chemostratigraphy of Pelagic Clay in the Western North Pacific Ocean Revealed via an Unsupervised Clustering Approach

Paleoceanography and Paleoclimatology, 2023
Pelagic clay constitutes massive and apparently uniform lithology that limits the stratigraphic correlation between neighboring sediment core samples.
K. Yasukawa, E. Tanaka, T. Miyazaki, B. Vaglarov, Q. Chang, Kentaro Nakamura, J. Ohta, K. Fujinaga, H. Iwamori, Y. Kato   +9 more
semanticscholar   +1 more source

Chemostratigraphic Architecture of Sandstone Facies Exposed along Auchi-Ighara Road, Mid-Western Nigeria

GeoScience Engineering, 2022
In this work, inorganic whole-rock geochemistry was applied to characterize the exposed sandstone facies along the Auchi-Ighara road Anambra basin Midwestern, Nigeria for distinction and correlation of the depositional units on the basis of the ...
Phillips Reuben IKHANE, Odunayo Christy ATEWOLARA-ODULE, Olalekan Olayiwola OYEBOLU, Omotoso Richard FAKOLADE   +3 more
doaj   +1 more source

Application of Chemostratigraphic Methods to Floodplain Alluvial Deposits within the Big Harris Creek Basin, North Carolina

Geosciences, 2022
Big Harris Creek, North Carolina, possesses a geomorphic history and alluvial stratigraphic record similar to many drainages in southern Appalachian Piedmont.
Samantha N. Sullivan, Jerry R. Miller, Carmen L. Huffman   +2 more
doaj   +1 more source

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P., Anthony E. Fallick, Anton B. Kuznetsov, Bowring S.A., Brand U., Brasier M.D., Brasier M.D., Brasier M.D., Burns S.J., Calver C.R., Corsetti F.A., Fairchild I.J., Fairchild I.J., Gao G., Gorokhov I.M., Gorokhov I.M., Gorokhov I.M., Grotzinger J.P., Grotzinger J.P., Hoffman P.F., Igor M. Gorokhov, Kaufman A.J., Kennedy M.J., Kirschvink J.L., Knoll A.H., Knoll A.H., Knoll A.H., Kupecz J.A., Kuznetsov A.B., Kuznetsov A.B., Lambert I.B., Magaritz M., McArthur J.M., McArthur J.M., McCulloch M.T., Melezhik V.A., Morton J.P., Ovchinnikova G.V., Pelechaty S.M., Podkovyrov V.N., Pokrovsky B.G., Pokrovsky B.G., Pokrovsky B.G., Saylor B.Z., Semikhatov M.A., Singh U., Smith L.H., Tronnes R.G., Tucker M.E., Tucker M.E., Veizer J., Veizer J., Victor A. Melezhik, Wada S.-I., Walter M.R., Wang Da-Rui   +55 more
core   +1 more source

AGE CONSTRAINTS AND SOURCE AREAS FOR THE PRECAMBRIAN TO CAMBRIAN STRATA OF THE SOUTHERN YENISEI RIDGE (REDKOLESNAYA AND OSTROVNOY FORMATIONS)

Геодинамика и тектонофизика, 2023
The Precambrian to Cambrian strata at the southwestern margin of the Siberian Platform are ubiquitously characterized by a gradual transition from red-colored alluvial and deltaic deposits to shallow-marine carbonates, reflecting a transgressive infill ...
V. V. Marusin, B. B. Kochnev, G. A. Karlova, A. I. Proshenkin   +3 more
doaj   +1 more source

Palaeoenvironmental and diagenetic reconstruction of a closed-lacustrine carbonate system - the challenging marginal setting of the Miocene Ries Crater Lake (Germany) [PDF]

, 2017
Chemostratigraphic studies on lacustrine sedimentary sequences provide essential insights on past cyclic climatic events, on their repetition and prediction through time.
Abdul Aziz, Allan, Allan, Alonso-Zarza, Anadon, Anadón, Anderson, Andrews, Arp, Arp, Arp, Arp, Barnaby, Beier, Benito, Bennett, Brand, Buchner, Buchner, Budd, Böhme, Böhme, Börner, Chamberlain, Christ, Christ, Danielopol, Decrouy, Depeche, Dickson, Dravis, Dwyer, Einsele, Emrich, Flügel, Gentner, Gierlowski-Kordesch, Godet, Goldstein, Gouramanis, Grafenstein, Gray, Halley, Hays, Heaton, Holmes, Immenhauser, Immenhauser, Jankowski, Janz, Janz, Joachimski, Junge, Keatings, Kontrovitz, Kooij, Kwiecien, Leng, Leng, Li, Li, Lohmann, Lohmann, Mangili, Mangili, Marshall, Marshall, Mayr, Mazzini, Melezhik, Mischke, Mutti, Niemann, Oehlerich, Orszag-Sperber, Pache, Pohl, Prieto, Richter, Richter, Riding, Romanek, Rothe, Sanz, Schwarz, Sheppard, Stansell, Staudacher, Stevens, Swart, Talbot, Tütken, Vasconcelos, Wilson, Wittkop, Xia   +95 more
core   +1 more source

Early Neoproterozoic limestones from the Gwna Group, Anglesey [PDF]

, 1998
Limestone megaclasts up to hundreds of metres in size are present within the Gwna Group mélange, North Wales, UK. The mélange has been interpreted as part of a Peri-Gondwanan fore-arc accretionary complex although the age of deposition remains ...
JANA M. HORÁK, JANE A. EVANS, O'Brian, Blatt, Matthew, Shackleton, Dickin, Gibbons, Denison, McCausland, Montañez, Schuster, Shackleton, Shields, Walter, White, Wood   +16 more
core   +4 more sources