Results 61 to 70 of about 54,225 (159)

The “regime shift extinctions” hypothesis and mass extinction of waterbirds in Hawaiʻi

Ecosphere, Volume 17, Issue 1, January 2026.
Abstract Studies of biodiversity loss commonly imply that species extinctions occurred as a direct result of initial human arrival and thus are attributable to stewardship failures of Indigenous Peoples. However, recent studies have suggested this assumption is not supported by the evidence, prompting a global reevaluation of existing assumptions.
Kristen C. Harmon, Melissa R. Price, Kawika B. Winter   +2 more
wiley   +1 more source

Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, Switzerland

, 2018
Bristen granite is a body of fine-grained leucogranite occurring in the Gotthard rail base tunnel in the Central Alps. During construction of the tunnel, Bristen granite (Brgr) has been drilled along a 600 m long section.
Kurt Bucher, Seelig, Ulrike, Bucher,Kurt, Bucher, Kurt, Seelig,Ulrike, Ulrike Seelig   +5 more
core   +1 more source

Global Copper Deposit Dataset: A New Open‐Source Database for Advanced Data Analysis and Exploration Targeting

Geoscience Data Journal, Volume 13, Issue 1, January 2026.
We build a new, open‐source global copper deposit dataset (GCDD), facilitating AI‐driven data analysis for exploration targeting and improving our understanding of copper mineralizing systems and their mappable expressions. The GCDD hosts information about 1483 copper deposits worldwide, capturing key deposit attributes such as location, genetic type ...
Bin Wang, Renguang Zuo, Oliver P. Kreuzer   +2 more
wiley   +1 more source

A Density Functional Theory Study on the Effect of Lattice Impurities on the Electronic Structures and Reactivity of Fluorite

, 2017
Fluorite (CaF2), a halogen elemental mineral, always co-exists with other minerals. The Ca element in fluorite is often replaced by rare earth elements (REEs), such as cerium (Ce) and yttrium (Y).
Wei Jiang, Wei Sun, Yuehua Hu, Jiande Gao, Zhiyong Gao   +4 more
core   +1 more source

Geochemistry data of the nadergul granodiorite of the late archean hyderabad granite batholith, part of eastern dharwar craton, india; implications for composition of the lower continental crust

Data in Brief, 2020
The Nadergul granodiorite (NG), is a part of Hyderabad Granite Batholith (HGB), exposed at ground level covering an area of 6 km2. Field observational data suggests that the NG is involved in the magma mixing mingling process.
Ch. Narshimha, U.V.B. Reddy, K. Praveen, S. Ramesh   +3 more
doaj   +1 more source

Surgical Fertility Preservation Can Be Safely Performed Without Delaying Treatment for Children With Severe Aplastic Anemia

Pediatric Blood &Cancer, Volume 73, Issue 1, January 2026.
ABSTRACT Pediatric patients with severe aplastic anemia (SAA) who undergo hematopoietic cell transplantation are at significantly increased risk of infertility. Pretransplant fertility preservation (FP) options for prepubertal children are surgical procedures: ovarian or testicular tissue cryopreservation (OTC and TTC). Bleeding and infection risk must
Christopher J. McCauley, Erin E. Rowell, Monica M. Laronda, Sara Zarnegar‐Lumley   +3 more
wiley   +1 more source

Geochemical and geophysical relationship of the potassium-rich fenite zone in surface and subsurface investigations of the giant Kuluncak (Malatya) Nb-U-REE-Zr-Li mineralization

Bulletin of the Mineral Research and Exploration
The Kuluncak (Malatya) district hosts one of the most significant Nb–U–REE–Zr–Li mineralizations in Türkiye, spatially associated with alkaline and carbonatite-related rocks.
Okan Pulat, Murat Kirtil, Mustafa Karakaş, Mustafa Küçük, Ahmet Mert Ulutaş, Murat Akgöz, Ali Tugcan Unluer, Mehmet Burak Omaç, Özkan Türkan, Hülya Ateş   +9 more
doaj   +1 more source

Rare Earth Elements (REE) Deposits Associated with Great Plain Margin Deposits (Alkaline-Related), Southwestern United States and Eastern Mexico

Resources, 2018
W.G. Lindgren in 1933 first noted that a belt of alkaline-igneous rocks extends along the eastern edge of the Rocky Mountains and Basin and Range provinces from Alaska and British Columbia southward into New Mexico, Trans-Pecos Texas, and eastern Mexico ...
Virginia T. McLemore
doaj   +1 more source

A Systemic Reflection On Why Biology Is Best : E(s) ∞ mc2 Sentience, Consciousness and Transcendance?

Systems Research and Behavioral Science, Volume 43, Issue 1, Page 78-82, January/February 2026.
ABSTRACT The short essay makes a case that a post biological world will be a devolution. Sentience is a relational process linked with the awe and wonder we experience in relation to one another and our shared habitat. The voiceless need to be protected by extending solidarity on the basis of sentience—a normative plea, but also on the basis of ...
J. J. McIntyre‐Mills
wiley   +1 more source

Substitution mechanisms of zirconolite for nuclear waste form: a mini review

Frontiers in Environmental Science
Zirconolite waste forms are advanced ceramic materials for the immobilisation of HLW, particularly actinides. This paper presents a systematic review of seven common substitution mechanisms of nuclear wastes in zirconolite, categorized into two types ...
Shiyin Ji, Shiyin Ji, Chuanhang Zhao, Xiuhua Ji, Chengxin Gu, Youkui Zhang, Youkui Zhang, Xin Chen, Xin Chen, Tao Duan, Tao Duan, Tianhua Ju, Changzhong Liao   +12 more
doaj   +1 more source