Results 61 to 70 of about 696,011 (373)
Report of Investigations No. 135 Oligocene Volcanism and Multiple Caldera Formation in the Chinati Mountains, Presidio County, Texas [PDF]
UT ...
Cepeda, Joseph C., Henry, Christopher D.
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Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
The Mountain Pass Rare-Earth Deposits [PDF]
Rare-earth minerals were discovered near Mountain Pass in northeastern San Bernardino County, Calif., in April 1949, and in the following year the Sulphide Queen carbonate body was found.
Olson, J. C., Pray, L. C.
core
Key Strata Inducing Dynamic Disasters Based on Energy Condition: Criterion and Application
The thick and hard rock strata (THRS) exist widely in coal measure strata, which control the movements of overlying rock strata in stopes. When THRS break, great energy is released, which could aggravate the risks of coal and gas outburst, rock burst ...
Chao Xu +6 more
doaj +1 more source
Listening to Hong Kong children's perspectives through pretend play
Abstract Quality in early childhood education and care (ECEC) has become an increasing concern in recent years. The issue has been regularly discussed by different stakeholders. However, the rising concern regarding quality in ECEC has not seriously taken into account children's perspectives.
Suzannie K. Y. Leung
wiley +1 more source
When do we need pan-global freeze to explain ^(18)O-depleted zircons and rocks? [PDF]
Rocks with δ^(18)O values of less than 5‰ SMOW (Standard Mean Ocean Water) contain oxygen derived from ∼0‰ seawater or meteoric (rain or melted snow,
Bindeman, Ilya
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Natural Hydrogen: A Mini‐Review Unveiling Its Potential as a Key to Sustainable Future for Energy
This mini‐review summarizes natural hydrogen's formation mechanisms, exploration progress, and potential to drive global energy transition toward sustainability. ABSTRACT As the global energy shortage challenge and transition continues, greater attention is being drawn to natural hydrogen, a clean and high‐potential energy source.
Yuanming Gao +14 more
wiley +1 more source
This research was funded through Natural Environment Research Council (grant NE/J021822/1) and the APC was paid through the RCUK OA block grant.Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and ...
Cawood, Peter Anthony +1 more
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Bio‐Archive of Cultural Heritage Microbiomes for Sustainable Conservation in the Multi‐Omics Era
This review emphasizes the importance of a bio‐archive of the core microbiomes of cultural heritage as a reference for sustainable conservation, encompassing the scope of multi‐omics approaches and the identification of core microbiomes that integrate with environmental parameters.
Xiaomei Fu, Fasi Wu, Xiaobo Liu
wiley +1 more source
A reference book on rocks and minerals of New England for gifted students in the intermediate grades. [PDF]
Thesis (Ed.M.)--Boston ...
Carson, Janine A., Edwards, Harriet L.
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