Results 81 to 90 of about 25,106,784 (215)

Occurrence of photosynthetic microbial mats in a Lower Cretaceous black shale (central Italy): a shallow-water deposit [PDF]

, 2018
Cretaceous oceanic anoxic events (OAEs) were periods of high organic carbon burial corresponding to intervals with excellent organic matter (OM) preservation.
Fiet, N., Gorin, G., Pacton, Muriel
core  

Response of littoral chironomid community and organic matter to late glacial lake level and environmental changes at Lago dell'Accesa (Tuscany, Italy). [PDF]

, 2007
International audienceThis study focuses on the response of lacustrine littoral chironomid communities to late glacial changes in limnological, environmental and climate conditions in the Mediterranean context.
A Asioli, A Korhola, A Ramrath, A Sifeddine, Anne Véronique Walter-Simonnet, B Huntley, Boris Vannière, CA Woodward, E Gandouin, E Lallier-Vergès, EJ Fittkau, Elena Ortu, EM Barley, Fatima Laggoun-Défarge, FF Langford, FH Heinis, G Merciai, G Velle, Gilles Bossuet, H Noël, H Renssen, IR Walker, IR Walker, J Espitalié, J Espitalié, J Jacob, Jacques-Louis de Beaulieu, Jean Robert Disnar, JR Disnar, KD Bennett, L Mastrantuono, L Millet, Laurent Millet, LCV Pinder, M Hirvenoja, M Magny, M Magny, M Manca, M Stuiver, MA Di Vito, MG Butler, Michel Magny, ML McGarrigle, MO Hill, MR Talbot, O Heiri, OA Saether, P Armitage, P Meyers, PS Maitland, R Palomäki, R Schmidt, RN Thut, RO Brinkhurst, S Wulf, SJ Brooks, SJ Brooks, T Wiederholm, V Verneaux, Valérie Verneaux, W Hofmann, W Hofmann   +61 more
core   +3 more sources

Biochronostratigraphy and paleoenvironment analysis of Neogene deposits from the Pelotas Basin (well 2-TG-96-RS), Southernmost Brazil

Anais da Academia Brasileira de Ciências, 2015
This paper presents the integration of micropaleontological (palynology and foraminifera) and isotopic (87Sr/86Sr) analysis of a selected interval from the well 2-TG-96-RS, drilled on the onshore portion of the Pelotas Basin, Rio Grande do Sul, Brazil. A
WAGNER G. SILVA, GEISE S.A. ZERFASS, PAULO A. SOUZA, JAVIER HELENES   +3 more
doaj   +1 more source

Paleoenvironmental characterization of a Lower Cretaceous section of the Recôncavo Basin, Bahia, Brazil

Brazilian Journal of Geology, 2020
The objective of this work was to evaluate the paleodepositional conditions and potential for the hydrocarbons generation of the outcropping shales in the Southern Compartment of the Recôncavo Basin, indicative of the Candeias and Maracangalha Formations
Diego Nery do Amaral, José Roberto Cerqueira, Consuelo Lima Navarro de Andrade, Hélio Jorge Portugal Severiano Ribeiro, Karina Santos Garcia, Flávia Lima e Cima Miranda, Olívia Maria Oliveira, Antônio Fernando Queiroz, Luiz Carlos Lobato dos Santos   +8 more
doaj   +1 more source

Middle Jurassic vegetation dynamics based on quantitative analysis of spore/pollen assemblages from the Ravenscar Group, North Yorkshire, UK [PDF]

, 2016
Quantitative analysis of the distribution of dispersed spores and pollen (sporomorphs) has been used to assess temporal floral variation through the Middle Jurassic Ravenscar Group (Aalenian–Bathonian), North Yorkshire, UK.
Slater, S.M., Wellman, C.H.
core   +2 more sources

Palynofacies analysis of Ida-4 well, Niger Delta Basin, Nigeria

Geology Geophysics & Environment, 2019
Palynofacies analyses of the strata penetrated by Ida-4 wells were carried out with the aim of studying the stratigraphic sequence penetrated by the well in order to establish palynostratigraphic zones, relative age and the paleoenvironment of deposition.
Jacinta N. CHUKWUMA-ORJI, E. Okosun, Funmilayo Daramola Gana   +2 more
semanticscholar   +1 more source

Organic facies variation in the late Kimmeridgian of the Boulonnais area (northernmost France) [PDF]

, 2001
Recent studies of the upper Kimmeridgian of the Boulonnais area (northernmost France) have provided a sequence-stratigraphical framework that is here used to help interpret variations in sedimentary organic matter (OM) content and composition in response
Bialkowski, Anne, Deconinck, J.F., Lallier-Vergès, Elisabeth, Tribovillard, Nicolas, Tyson, R.   +4 more
core   +3 more sources

Annual fossil organic carbon delivery due to mechanical and chemical weathering of marly badlands areas [PDF]

, 2012
International audienceA key issue in the study of the carbon cycle is constraining the stocks and fluxes in and between C-reservoirs. Among these, the role and importance of fossil organic carbon (FOC) release by weathering of outcropping sedimentary ...
Copard, Yoann, Cras, A., Di Giovanni, Christian, Graz, Y., Marc, V., Mathys, N.   +5 more
core   +4 more sources

Kerogen typing using palynofacies analysis in Permian Barren Measures Formation in Raniganj sub–basin, East India

Journal of Palaeosciences, 2018
The objective of the study is the simple assessment of kerogen type in Barren Measures Formation shale using palynofacies. The Barren Measures Formation sandwiched between the coal–rich formations consist of organic–rich black carbonaceous shales. These ̴
Waquar Ahmed, G. Bhat, J. Mclennan, H. N. Sinha, S. Kanungo, S. Pandita, Y. Singh, N. Hakhoo, M. Hafiz, B. Thusu, N. Choudhary   +10 more
semanticscholar   +1 more source

Karakteristik Endapan Tsunami Berdasarkan Bukti Palinologi dan Sedimentologi di Bagian Timur Pulau Simeulue, Aceh, Indonesia

Jurnal Kelautan Tropis, 2020
Simeulue Island was located in an active tectonic zone that causes earthquakes followed by tsunamis. This research was conducted to get a detail explanation of tsunami deposits found in eastern Simeulue Island.
Winarni Winarni, Anis Kurniasih, Septriono Hari Nugroho, Jenian Marin, Reddy Setyawan, Purna Sulastya Putra, Eko Yulianto   +6 more
doaj   +1 more source