Results 91 to 100 of about 252,878 (288)

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

Journal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine, Joost Frieling, Bernd Wagner, Martin Melles, Volker Wennrich, Tamsin A. Mather, Stuart A. Robinson, David M. Pyle   +7 more
wiley   +1 more source

Sedimentary characteristics of coals in meandering river and braided river facies and during their transitions: A case study the Walloon Subgroup in the F8 block in the Surat Basin, Australia

Meitian dizhi yu kantan
ObjectiveAustralia is recognized as the fourth largest producer and the second largest exporter of coals in the world. The Bowen-Surat Basin is the largest coal producing basin in this country.
Zehong CUI, Yibo ZHAO, Zhihua LI, Shengli LI, Weiru LI   +4 more
doaj   +1 more source

Carbonate facies, diagenesis and sequence stratigraphy of an eocene nummulitic seservoir interval (jdeir formation), offshore NW Libya [PDF]

, 2006
This study investigates the sedimentology, petrology and depositional environments of a major Early Eocene nummulitic reservoir unit: the Jdeir Formation, from offshore NW Libya in the Mediterranean Sea. This formation is a prolific hydrocarbon-producing
Alhnaish, Abdelhakim S.
core  

New constraints on the postglacial evolution of Lago Maggiore, Northern Italy

Journal of Quaternary Science, EarlyView.
ABSTRACT Lago Maggiore is situated in an overdeepened valley reach at the southern margin of the European Alps, and its thick sediment infill allows the reconstruction of the postglacial valley and lake evolution. We study here the sedimentary succession in the lower Ossola Valley, which is infilled by ~500 m of deposits. In a marginal position, a core
Lukas Gegg, Alexander Fülling, Andrew Greenwood, György Hetényi, F. Martin Hofmann, Giovanni Monegato, Jahir S. Rangel Herrera, Camille Schirra, Marco Venier, Othmar Müntener   +9 more
wiley   +1 more source

Deep carbonate gas reservoir sweet spot identification with seismic data based on dual-factor control of sedimentary facies and fault system

Frontiers in Earth Science
Deep carbonate reservoirs are attractive targets for gas development. These reservoirs are deeply buried, and commonly possess strong heterogeneity and poor seismic data quality, making the identification of favorable production areas (“sweet spots ...
Guanyu Zhang, Xuri Huang, Yungui Xu, Shuhang Tang, Kang Chen, Da Peng   +5 more
doaj   +1 more source

Hydrocarbon formation and accumulation of the deep Paleogene of the Jiyang Depression, Shengli Oilfield

Petroleum Exploration and Development, 2011
Using geochemistry, sedimentary and petroleum geology methods, and based on the analysis of spatial distribution of deep source rocks and sedimentary organic facies, the favorable exploration prospects in the Jiyang Depression, Shengli Oilfield are ...
Linye Zhang, Xingyou Xu, Qing Liu, Xiangxing Kong, Shouchun Zhang   +4 more
doaj   +1 more source

Climate‐modulated accumulation and erosion of sediments in the Rodderberg crater basin for the last 439 ka (East Eifel Volcanic Field, Germany)

Journal of Quaternary Science, EarlyView.
ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka, Ines Hogrefe, An‐Sheng Lee, Maarit Kalliokoski, Manfred Frechen   +4 more
wiley   +1 more source

Facies and Facies Architecture of the Ivanić Grad Formation (Upper Pannonian) - Sava Depression, NW Croatia

Geologia Croatica, 2002
Four facies were distinguished within the Ivanić Grad Formation ofthe Sava Depression: massive marl facies (F1), thick-bedded to massivesandstone facies (F2), thin-bedded sandstone facies (F3) and thinbeddedsandstone, siltite and marl facies (F4 ...
Boris Vrbanac
doaj   +1 more source

Mangarara Formation: exhumed remnants of a middle Miocene, temperate carbonate, submarine channel-fan system on the eastern margin of Taranaki Basin, New Zealand [PDF]

, 2009
The middle Miocene Mangarara Formation is a thin (1–60 m), laterally discontinuous unit of moderately to highly calcareous (40–90%) facies of sandy to pure limestone, bioclastic sandstone, and conglomerate that crops out in a few valleys in North ...
Peter J.J. Kamp, Nelson, Campbell S., Ángel Puga‐Bernabéu, Adam J. Vonk, Campbell S. Nelson, Vonk, Adam J., Kamp, Peter J.J., Puga-Bernabéu, Ángel   +7 more
core   +1 more source

Introducing a ramped pyrolysis/oxidation‐14CO2 analysis system operated with mobile molecular sieve traps

Limnology and Oceanography: Methods, EarlyView.
Abstract A novel instrument for the thermal degradation of sedimentary organic matter was set up at the Alfred Wegener Institute (AWI) in Bremerhaven, Germany, with the aim of enabling Ramped Pyrolysis/Oxidation‐14C analysis as direct CO2 gas measurement.
Laura Kattein, Malte Höhn, Hendrik Grotheer, Torben Gentz, Gesine Mollenhauer   +4 more
wiley   +1 more source