Results 61 to 70 of about 651,381 (291)

Trace fossils from the eocene Lillebælt clay formation, Røsnæs Peninsula, Denmark [PDF]

, 2015
A cliff exposure of the Eocene Lillebælt Clay Formation, on the Røsnæs peninsula of Zealand, Denmark, has yielded a diverse trace-fossil assemblage. The trace fossils are described formally for the first time and assigned to Phymatoderma melvillensis ...
Nielsen, Jan Kresten, Milàn, Jesper, Mesfun, Daniel   +2 more
core   +1 more source

High‐Density‐Cluster Ru Catalyst Substitute for Pt/C Benchmark Improves Membrane Water Electrolysis

Advanced Science, EarlyView.
Yuan et al. report a high‐density, monodispersed Ru cluster catalyst featuring interfacial covalent bonds that modulate the electronic structure and optimize intermediate adsorption–desorption, thereby conferring pH‐universal HER activity with ampere‐level current densities and enabling the development of Pt‐free membrane electrodes.
Zhen Yuan, Jia Xu, Zhongchen Gao, Linyan A, Shiying Guo, Jingguo Hu, Zhengshan Tian, Xiaoyong Xu   +7 more
wiley   +1 more source

Integrated ichnology and sedimentology of the Member-A (Dhaulagiri Formation, Tal Group), Mussoorie syncline: Discussion on trace fossils and Ediacaran-Cambrian boundary in Mussoorie syncline, Lesser Himalaya

Journal of the Palaeontological Society of India
The present work recognised a well-preserved suite of trace fossils including Catenichnus isp., Cruziana problematica, Cruziana tenella, Diplichnites isp., Monomorphichnus lineatus, Planolites montanus, Rusophycus isp., ?Rosselia socialis , serially ...
BIRENDRA P. SINGH, O.N. BHARGAVA, SIMRAN BANSAL, DHARMENDRA KUMAR, HARSHITA JOSHI, M.S. SATI, S.K. PRASAD   +6 more
doaj   +1 more source

Trace fossils of sediment core HAV-KU-6 from The Archipelago Sea, northern Baltic Sea, Finland

, 2018
Trace fossils of sediment core HAV-KU-6 from The Archipelago Sea, northern Baltic Sea ...
Virtasalo, Joonas J, Kaiser, Jérôme, Arppe, Laura, Hänninen, J, Tom Jilbert (6960437), Joonas J Virtasalo (6967787), Helge W Arz (6958289), Laura Arppe (6978935), Jilbert, Tom, Dellwig, Olaf, Olaf Dellwig (6971771), Jokinen, Sami A, Saarinen, Timo, Jérôme Kaiser (6958277), Arz, Helge Wolfgang, Sami A Jokinen (6978929), Collander, Miia, J Hänninen (6978932), Timo Saarinen (2403229), Miia Collander (6978938)   +19 more
core   +1 more source

Black Silicon for Solar Fuels

Advanced Science, EarlyView.
Black silicon couples broadband light harvesting with high‐surface‐area catalytic interfaces, offering a versatile photoelectrode platform for solar‐fuel production. Reaction‐specific analysis highlights trade‐offs involving recombination, chemical instability, catalyst‐induced optical shielding, competing reactions, and mass transport.
Neul Ha, Kaiying Wang, Wooseok Yang
wiley   +1 more source

Lower Eocene Footprints from Northwest Washington, USA. Part 1: Reptile Tracks

Geosciences, 2019
Lower Eocene fluvial strata in the Chuckanut Formation preserve abundant bird and mammal tracks. Reptile trace fossils include footprints from a small turtle (ichnogenus Chelonipus), and several Crocodylian trackways that consist of irregularly spaced ...
George E. Mustoe
doaj   +1 more source

The role of tetrapod trace fossils in continental ichnofacies models [PDF]

, 2010
The ichnofacies model provides the main framework to understand the paleoenvironmental significance of trace fossils. Traditionally focused on invertebrate trace fossil, the ichnofacies model has only recently expanded to include tetrapod footprints. The
Mángano, G., Marsicano, C. A., Krapovickas, Verónica   +2 more
core  

Multiscale Regulation of Ru‐Based Catalysts for Upgrading Biomass‐Derived Levulinic Acid and Levulinates to γ‐Valerolactone: Mechanisms, Advances, and Challenges

Advanced Science, EarlyView.
This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni, Cailu Xiao, Gongbing Zhou, Jingzi Zhang   +3 more
wiley   +1 more source

Continental trace fossils as versatile indicators of past environments

Frontiers in Ecology and Evolution
This mini-review compiles advances in continental ichnology, emphasizing their importance in advancing paleoenvironmental, paleoecological, biostratigraphic, and taphonomic applications of vertebrate and invertebrate trace fossils. The text analyzes them
Rosalía Guerrero-Arenas, Eduardo Jiménez-Hidalgo, Victor Manuel Bravo-Cuevas, Mauricio Velázquez-Aguilar   +3 more
doaj   +1 more source

Pleistocene trace fossils in the Ironshore Formation, Little Cayman, British West Indies

, 2011
Oosparite grainstones of the Pleistocene Ironshore Formation, Little Cayman, British West Indies, contain the trace fossils Conichnus conicus, Ophiomorpha nodosa, and Planolites beverleyensis.
Metz Robert, Robert Metz
core   +1 more source