Results 31 to 40 of about 83,753 (334)

Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland [PDF]

, 2016
Globally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes and trilobite extinctions.
Faggetter, Luke, FAGGETTER, LUKE E., Joachimski, Michael, JOACHIMSKI, MICHAEL M., NEWTON, ROBERT J., Pruss, Sara, PRUSS, SARA B., Raine, Robert, RAINE, ROBERT J., Smith, Paul, SMITH, PAUL M., SUN, YADONG, WIDDOWSON, MIKE, Wignall, P B, WIGNALL, PAUL B.   +14 more
core   +1 more source

Causes of the Cambrian Explosion [PDF]

Science, 2013
The rapid diversification of animal species in the early Cambrian was the result of a range of interacting biotic and abiotic processes.
Smith, M.P., Harper, D.A.T.
openaire   +3 more sources

AGE CONSTRAINTS AND SOURCE AREAS FOR THE PRECAMBRIAN TO CAMBRIAN STRATA OF THE SOUTHERN YENISEI RIDGE (REDKOLESNAYA AND OSTROVNOY FORMATIONS)

Геодинамика и тектонофизика, 2023
The Precambrian to Cambrian strata at the southwestern margin of the Siberian Platform are ubiquitously characterized by a gradual transition from red-colored alluvial and deltaic deposits to shallow-marine carbonates, reflecting a transgressive infill ...
V. V. Marusin, B. B. Kochnev, G. A. Karlova, A. I. Proshenkin   +3 more
doaj   +1 more source

New data on geochemical features, fluid mode, age and potential ore content of granitoids of Isherim anticlinorium (North Ural)

Литосфера, 2018
Granitoids of Ishirim anticlinorium which is one of the major Precambrian structures of the North Urals, are poorly studied by modern geochemical and isotope-geochronological methods that led to the existence of different points of view on formation ...
Georg A. Petrov, Vladimir V. Holodnov, Yurii L. Ronkin   +2 more
doaj   +1 more source

The C-value enigma and timing of the Cambrian explosion

, 2008
The Cambrian explosion is a grand challenge to science today and involves multidisciplinary study. This event is generally believed as a result of genetic innovations, environmental factors and ecological interactions, even though there are many ...
Adami, Bousso, Bromham, Carter, Conway Morris, Davidson, Davidson, Dirson Jian Li, Gregory, Hedges, Kauffman, Knoll, Knoll, Kumar, Larroux, Li, Li, Lynch, Mattick, Mattick, Mojzsis, Peltier, Peterson, Sharov, Shengli Zhang, Shmulevich, Shu, Trevors, Valentine, Wada   +29 more
core   +1 more source

Cambrian lattices

Advances in Mathematics, 2006
Revisions in exposition (partly in response to the suggestions of an anonymous referee) including many new figures. Also, Conjecture 1.4 and Theorem 1.5 are replaced by slightly more detailed statements. To appear in Adv. Math.
openaire   +3 more sources

Controls on gut phosphatisation : the trilobites from the Weeks Formation Lagerstätte (Cambrian; Utah) [PDF]

, 2012
Despite being internal organs, digestive structures are frequently preserved in Cambrian Lagerstätten. However, the reasons for their fossilisation and their biological implications remain to be thoroughly explored.
AA Öpik, AA Öpik, AE Klann, AP Lee, BDE Chatterton, BDE Chatterton, BE Felgenhauer, BO Turbeck, Carles Lalueza-Fox, Carlo Kier, CD Walcott, CHJ Hof, D Shu, DC García-Bellido, DC García-Bellido, DC García-Bellido, DEG Briggs, DEG Briggs, DEG Briggs, DEG Briggs, DL Bruton, DL Bruton, DM Martill, Enrico Bonino, F Graf, F Neues, FR Schram, G Thomas, G Thomas, GL Becker, GT Ushatinskaya, H Greven, HJ Harrington, J Gouranton, J Vannier, J Yager, JA Dunne, JD Corrêa Junior, JD Corrêa Junior, JH Carpenter, JM Green, JW Hagadorn, Jörg Habersetzer, LE Babcock, M Fanenbruck, M Ludwig, MA Beebe, Matthieu Carré, ME McNamara, MY Zhu, NJ Butterfield, P Greenway, P Jenkins, PA Allison, PA Jell, PR Wilby, PR Wilby, PR Wilby, R Lavallard, R Lerosey-Aubril, R Roer, RA Fortey, RA Robison, RS Sohal, Rudy Lerosey-Aubril, S Koenemann, S Koenemann, SA Filimonova, SP Hopkin, TA Hegna, Thomas A. Hegna, WH Fahrenbach, WH Fahrenbach   +72 more
core   +5 more sources

An Examination of Canadian Post-Secondary Faculty Beliefs Concerning Learning Strategies

Canadian Journal for the Scholarship of Teaching and Learning
Students make many decisions in academia concerning learning. One of the most critical among them is what learning strategy to use. This research surveyed faculty members from various Canadian colleges and universities to examine their opinions on the ...
Derek Newman
doaj   +1 more source

Book Review: Teaching and Generative AI: Pedagogical Possibilities and Productive Tensions

Brock Education: a Journal of Educational Research and Practice
Review of Buyserie, B., & Thurston, T. N. (Eds.). (2023). Teaching and generative AI: Pedagogical possibilities and productive tensions. Empower Teaching Open Access Book Series, Utah State University. https://uen.pressbooks.pub/teachingandgenerativeai/
Mel Young
doaj   +1 more source

Review of the Ediacaran-Lower Ordovician (pre-Sardic) stratigraphic framework of the Eastern Pyrenees, southwestern Europe

Geologica Acta, 2018
The Ediacaran-Lower Ordovician successions exposed in the Eastern Pyrenees are updated and revised based on recent U-Pb zircon radiometric ages, intertonguing relationships of carbonate-dominated strata, and onlapping patterns marking the top of volcano ...
M. Padel, S. Clausen, J. J. Álvaro, J.M. Casas   +3 more
doaj   +1 more source