Results 31 to 40 of about 69,323 (287)

Hydrocarbon accumulation conditions and main controlling factors of the Middle-Upper Cambrian Xixiangchi Group in the eastern Sichuan Basin

open access: yesShiyou shiyan dizhi, 2021
The petroleum geological elements and main controlling factors of the Middle-Upper Cambrian Xixiangchi Group in the eastern Sichuan Basin were systematically analyzed on the basis of geological outcrops and drilling data.
Ziming SUN   +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)

open access: yesЛитосфера, 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   +2 more
doaj   +1 more source

Characterization of the length of structural fractures in low permeability reservoirs and its application: a case study of Longwangmiao Formation in Moxi-Gaoshiti areas, Sichuan Basin

open access: yesShiyou shiyan dizhi, 2022
In order to classify the quantitative characterization method of structural fracture length in low-permeability reservoirs, the Cambrian Longwangmiao Formation of Moxi-Gaoshiti areas in the Sichuan Basin is taken an example in this study.
Ke SUN, Ke XU, Qinghua CHEN
doaj   +1 more source

Cambrian lattices

open access: yesAdvances 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

Cambrian Hopf algebras

open access: yesAdvances in Mathematics, 2017
60 pages, 43 figures. Version 2: New Part 3 on Schr\"oder Cambrian Algebra.
Chatel, Grégory, Pilaud, Vincent
openaire   +3 more sources

The C-value enigma and timing of the Cambrian explosion

open access: yes, 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   +29 more
core   +1 more source

Inorganic geochemical characteristics and evaluation of Sinian-Cambrian post-mature source rocks in Sichuan Basin

open access: yesShiyou shiyan dizhi, 2022
The evaluation of post-mature source rocks gradually invalidates by traditional organic geochemical parameters due to the decreasing of organic matter abundance. However, the inorganic elements in source rocks are not easily affected by thermal evolution.
Chunhua SHI   +4 more
doaj   +1 more source

Tectonic history of the South Tannuol Fault Zone (Tuva region of the northern Central Asian Orogenic Belt, Russia) : constraints from multi-method geochronology [PDF]

open access: yes, 2020
In this study, we present zircon U/Pb, plagioclase and K-feldspar Ar-40/Ar-39 and apatite fission track (AFT) data along the South Tannuol Fault Zone (STFZ).
De Grave, Johan   +6 more
core   +1 more source

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

open access: yesBrock 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

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

open access: yesCanadian 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

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