Results 81 to 90 of about 2,385 (155)

Carbon isotope fluctuations in Precambrian carbonate sequences of several localities in Brazil

Anais da Academia Brasileira de Ciências, 2000
Carbon isotope fluctuations in Precambrian sedimentary carbonates between 2.8 Ga and 0.60 Ga in Brazil are examined in this study. The carbonate facies of the BIF of the 2.8 Ga-old Carajás Formation, state of Pará in northern Brazil, has rather ...
SIAL ALCIDES N., FERREIRA VALDEREZ P., DEALMEIDA AFONSO R., ROMANO ANTONIO W., PARENTE CLOVIS V., DACOSTA MARCONDES L., SANTOS VICTOR H.   +6 more
doaj  

Application of chemostratigraphy to the Mungaroo Formation, the Gorgon field, offshore northwest Australia

, 2010
The Mungaroo Formation in the Gorgon Field is a stratigraphically complex fluvial system of Triassic age. It is also a major hydrocarbon reservoir, therefore understanding its internal stratigraphic architecture is of paramount importance to ...
Ken Ratcliffe, Milly Wright, Jösta Vermeulen, Andy Palfrey, Paul Montgomery, Adam Vonk, Michael Barrett   +6 more
core   +1 more source

Preface - New insights into the stratigraphic setting of Paleozoic to Miocene deposits: case studies from the Persian Gulf, Peninsular Malaysia and south-eastern Pyrenees

, 2019
This book contains four chapters dealing with the investigation of facies analysis and palaeo-ecology, chemostratigraphy and chronostratigraphy referring to the palaeoecological and facies analysis techniques and methodologies, pertaining, in particular,
AIELLO, GEMMA
core  

Chemostratigraphy of Jurassic-cretaceous Italian carbonate platforms

, 2002
Samples of shallow-water carbonates were collected from Jurassic and Cretaceous Italian carbonate platforms and subjected to petrographic, diagenetic and chemostratigraphic analyses (87Sr/86Sr, δ13Ccarb, δ13Corg, δ18O). In general, the new chemostratigraphic data generated reflect trends established by previous work, some of which has been carried out ...
Woodfine, R, Woodfine, Richard Gareth
openaire   +1 more source

Facies analysis, sequence stratigraphy and chemostratigraphy of the Sete Lagoas Formation (Bambui Group), northern Minas Gerais State, Brazil: evidence of a cap carbonate deposited on the Januária basement high

Brazilian Journal of Geology
: Sedimentary rocks of the Sete Lagoas Formation, exposed in the left margin of the São Francisco river (Minas Gerais State, Brazil), were deposited on the Januária-Itacarambi basement high.
Pascoal Perrella Júnior, Alexandre Uhlein, Gabriel Jube Uhlein, Alcides Nobrega Sial, Antônio Carlos Pedrosa-Soares, Otávio Nunes Borges de Lima   +5 more
doaj   +1 more source

A Multiple-Proxy Geochemical Investigation of a Shallow Core from Doggerland: Implications for Palaeolandscape and Paleoenvironmental Reconstruction

Humans
The exploration of Doggerland, the prehistoric landscape that once connected Britain to the continent, remains one of Europe’s most significant archeological challenges.
Mohammed Bensharada, Alex Finlay, Ben Stern, Richard Telford, Vincent Gaffney   +4 more
doaj   +1 more source

Quantitative and Nuanced Approaches Elucidate Carbon Isotope Records

Geochemistry, Geophysics, Geosystems
Earth scientists have leveraged carbon isotope records to interpret Earth history and establish chronostratigraphic frameworks for decades (e.g., Halverson et al., 2005, https://doi.org/10.1130/b25630.1; Kaufman & Knoll, 1995, https://doi.org/10.1016 ...
Cedric J. Hagen
doaj   +1 more source

Global Upper Ordovician correlation by means of delta C-13 chemostratigraphy: implications of the discovery of the Guttenberg delta C-13 excursion (GICE) in Malaysia

, 2010
Apart from a single study of the early Katian delta C-13 chemostratigraphy in two regions in China, no investigations of the Sandbian and Katian chemostratigraphy have been published from anywhere in Asia.
Bergstroem, Stig M., Agematsu, Sachiko, Schmitz, Birger,, Lund University.   +3 more
core   +2 more sources

Chemostratigraphy and zircon typology in Cambrian sequence stratigraphy - North saharan platform (Algeria)

, 2002
Aït-Salem Hamid. Chemostratigraphy and zircon typology in Cambrian sequence stratigraphy - North saharan platform (Algeria). In: Documents des Laboratoires de Géologie, Lyon, n°156, 2002. STRATI 2002. 3ème congrès français de stratigraphie.
Aït-Salem, Hamid
core  

Hirnantian (latest Ordovician) bio- and chemostratigraphy of the Stirnas-18 core, western Latvia [PDF]

Estonian Journal of Earth Sciences, 2010
Integrated study of the uppermost Ordovician Porkuni Stage in the Stirnas-18 core, western Latvia, has revealed one of the most complete Hirnantian successions in the eastern Baltic region.
Hints, Linda, Hints, Olle, Kaljo, Dimitri, Kiipli, Tarmo, Männik, Peep, Nõlvak, Jaak, Pärnaste, Helje   +6 more
doaj