Results 51 to 60 of about 2,124,047 (278)

Conodont biostratigraphy of the Crawford Group, Southern Uplands, Scotland [PDF]

, 2002
Extensive new conodont collections from the Crawford Group, the oldest succession in the Southern Uplands of Scotland, support the previously documented biostratigraphical ages for the included formations.
Armstrong, Howard A., Barron, Hugh F., Floyd, James D., Tingqing, Lu   +3 more
core   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Middle Ordovician conodonts and graptolites at Los Cauquenes range, central Precordillera of San Juan, Argentina [PDF]

, 2013
The Ordovician System is superbly represented in the Precordillera of western Argentina, at the Andean foothills. During the Middle Ordovician, an important paleogeographical rearrangement of depocenters and source areas took place associated with the ...
Albanesi, Guillermo Luis, Ortega, Gladys del Carmen, Voldman, Gustavo Gabriel   +2 more
core  

Evaporites and the salinity of the ocean during the Phanerozoic: Implications for climate, ocean circulation and life [PDF]

, 2005
A compilation of data on volumes and masses of evaporite deposits is used as the basis for reconstruction of the salinity of the ocean in the past.
Balukhovsky, A. N., Flögel, Sascha, Hay, William W., Migdisov, A., Söding, Emanuel, Wold, C. N.   +5 more
core   +1 more source

Proglacial lake records of Holocene glacier behaviour and catchment processes in Slettedalen, Northeast Greenland

Journal of Quaternary Science, EarlyView.
ABSTRACT Constraining Arctic catchment response to Holocene climate change is vital for understanding future environments. We present detailed sedimentological, geochemical and grain size end‐member analysis of two Holocene (~7.0 ka to present) lake sequences, S1 and S2, close to Zackenberg, Northeast Greenland.
Kathryn Adamson, Matt Carney, Stamatia Galata, Tom Bishop, Timothy Lane, Vikas Mackevicius, Rochelle Taylor   +6 more
wiley   +1 more source

Recent developments in the Upper Ordovician and lower Silurian conodont biostratigraphy in Estonia [PDF]

Estonian Journal of Earth Sciences, 2007
The current state of and the latest developments in the conodont-based biostratigraphical studies of Upper Ordovician and lower Silurian strata in Estonia are discussed.
Männik, Peep
doaj  

An extremely brief end Ordovician mass extinction linked to abrupt onset of glaciation

Solid Earth Sciences, 2019
The end Ordovician mass extinction (EOME) was the second most severe biotic crisis in Phanerozoic, and has been widely linked to a major glaciation. However, robust geochronology of this interval is still lacking.
Ming-Xing Ling, Ren-Bin Zhan, Guang-Xu Wang, Yi Wang, Yuri Amelin, Peng Tang, Jian-Bo Liu, Jisuo Jin, Bing Huang, Rong-Chang Wu, Shuo Xue, Bin Fu, Vickie C. Bennett, Xin Wei, Xiao-Cong Luan, Seth Finnegan, David A.T. Harper, Jia-Yu Rong   +17 more
doaj   +1 more source

The position of graptolites within Lower Palaeozoic planktic ecosystems. [PDF]

, 1993
An integrated approach has been used to assess the palaeoecology of graptolites both as a discrete group and also as a part of the biota present within Ordovician and Silurian planktic realms.
Allison P.A., Baker A. de C., Bates D.E.B., Beckly A.J., Bergstrom J., Berry W.B.N., Berry W.B.N., Berry W.B.N., Bjerreskov M., Brenchley, Briggs D.E.G., Bulman O.M.B., Bulman O.M.B., Bulman O.M.D., Cloud P., Colbath G.K., Conway Morris S., Conway Morris S., Conway Morris S., Conway Morris S., Conway Morris S., Cooper R.A., Crowther P.R., Crowther P.R., Elles G.L., Erdtmann B.D., Erdtmann B.D., Erdtmann B.D., Finney S.C., Fortey R.A., Fortey R.A., Fortey R.A., Fortey R.A., Gurich G., Herr S.H., Jackson D.E., Jager H., Jager H., Kemp A.E.S., Kirk N. H., Kirk N.H., Kirk N.H., Kirk N.H., Koren T.N., Kozlowski R., Kozlowski R., Koztowski R., Koztowski R., Koztowski R., Leggett J.K., Lenz A.C., Loydell D.K., Mauchline J., Nicholson H.A., Palmer D., Rickards R.B., Rickards R.B., Rickards R.B., Rickards R.B., Rickards R.B., Rickards R.B., Rigby S., Rigby S., Rigby S., Rosen B.R., Ruedemann R., Semina H.J., Sheehan P.M., Siveter D.J., Stormer L., Towe K.M., Tsudy D.M., Urbanek A., Urbanek A., Urbanek A., Walters M., Wells M.J., Whittington H.B., Williams S.H., Williams S.H., Williams S.H., Williams S.H., Williams S.H., Winston J.E., Zalasiewicz J.A., Ziegler A.M.   +85 more
core   +1 more source

The Age and Origin of Block Deposits in the Victorian Alps, Australia

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows, Michelle S. Worland, Julian Murton, Stephanie C. Mills, L. Keith Fifield   +4 more
wiley   +1 more source