Results 121 to 130 of about 28,105 (213)

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

Tubular carbonate concretions as hydrocarbon migration pathways? Examples from North Island, New Zealand [PDF]

, 2006
Cold seep carbonate deposits are associated with the development on the sea floor of distinctive chemosyn¬thetic animal communities and carbonate minerali¬sation as a consequence of microbially mediated anaerobic oxidation of methane.
Browne, Gregory H., Campbell, Kathleen A., Kamp, Peter J.J., King, Peter R., Nelson, Campbell S., Nyman, Stephanie Leigh, Pearson, Michael J., Schellenberg, Francesca   +7 more
core   +1 more source

Modern microbial landscape: Aerial mapping of microbially induced sedimentary structures forming in a coastal sabkha

Sedimentology, EarlyView.
ABSTRACT Microbially induced sedimentary structures (MISS) are considered important for understanding primitive life on Earth and for guiding the search for life on other planets. These structures are regarded as macroscopic fossils of early communities of unicellular organisms that did not produce skeletons or shells. In this study, field observations
Tomaso R. R. Bontognali, Axel Bouquety, Ottaviano Rüsch, Brigitte Kuhn, Zulfa Al Disi, Fadhil Sadooni, Nikolaus Kuhn, Jean‐Luc Josset, Hamad Al‐Saad Al‐Kuwari   +8 more
wiley   +1 more source

Hydrate-Based Methane Storage in Biodegradable Hydrogels Absorbing Dilute Sodium P-Styrenesulfonate Solution

Gels
Developing an exceptional reaction medium with high promotion efficiency, desirable biodegradability and good recyclability is necessary for hydrate-based methane storage.
Fangzheng Hua, Kang Tan, Jingyu Lv, Fei Wang, Mengting Sun   +4 more
doaj   +1 more source

Distinct expressions of the BSR using various frequencies offshore Uruguay and its correspondence with the gas hydrate stability zone [PDF]

, 2011
At the Uruguayan continental margin, seismic evidence for the occurrence of gas hydrate has been identified based on the presence of BSRs in densely spaced 2D reflection seismic sections from different surveys.
de Santa Ana, Héctor, Krastel, Sebastian, Preu, Benedict, Schwenk, Tilmann, Spiess, Volkhard, Tomasini, Juan   +5 more
core  

Dissociating Gas Hydrate Beneath the Hydrate Stability Zone

Geophysical Research Letters
Vast amounts of carbon are stored beneath the seafloor in the form of methane hydrate. Hydrate is stable at moderate pressure and low temperature at a depth extending several hundred meters beneath the seafloor to the base of gas hydrate stability (BGHS)
I. A. Pecher, A. E. Cook, E. A. Solomon, X. Wang, S. Han, M. Paganoni, M. Luo, K. U. Heeschen, D. D. McNamara, M. Nole, L. LeVay, K. Petronotis, P. M. Barnes, L. M. Wallace, D. M. Saffer   +14 more
doaj   +1 more source

Kinetic characteristics of methane hydrate in functionalized multi-walled carbon nanotubes and L-leucine compounding system

地质科技通报
Objective Accelerated the generation of natural gas hydrate is crucial for advancing hydrate-based technologies such as gas storage, gas separation, and CO2 capture.
Wenhao SHAN, Lin WANG, Xiang'en WU, Yuqi YANG, Juhuizi WANG, Yuye CAI   +5 more
doaj   +1 more source

High-gravity assisted coal mine gas separation based on clathrate hydrates: Implication for methane recovery

International Journal of Mining Science and Technology
Hydrate-based gas separation offers a promising approach for coalbed methane recovery, reaching energy conservation and emissions reduction. This study innovatively applied high-gravity technology to enhance hydrate formation in separating 25%CH4/67%N2/8%
Qiang Zhang, Yalan Peng, Xiang Li, Yuanji Li, Zhenyuan Yin   +4 more
doaj   +1 more source

The microstructure of sediment-hosted hydrates: evidence from effective medium modelling of laboratory and borehole seismic data

, 2009
Much of our knowledge of hydrate distribution in the subsurface comes frominterpretations of remote seismic measurements. A key step in such interpretations isan effective medium theory that relates the seismic properties of a given sediment toits ...
Chand, S., Minshull, T.A.
core  

Methane hydrate. Stability conditions of methane hydrate in natural seawater.

The Journal of the Geological Society of Japan, 1996
Tatsuo Maekawa, Noboru Imai
openaire   +2 more sources