Results 161 to 170 of about 29,350 (195)

Decadal‐Scale In Situ Scanning of a Stalagmite From Southwest China Reveals Blake Geomagnetic Excursion Structure

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We present a decadal‐scale paleomagnetic analysis of a stalagmite collected from Shuixi Cave, southwest China, spanning 89−123 ka. Our findings include: (a) Magnetite is the dominant magnetic mineral, and paleomagnetic directions can be obtained via demagnetization; (b) Magnetic scanning at 0.1‐mm resolution captures key magnetic features ...
Zhongshan Shen, Youwei Li, Liang Yi, Huafeng Qin, Jian Wang, Yibing Li, Hai Cheng   +6 more
wiley   +1 more source

Metamorphism and plutonism in the Quetico Belt, Superior Province, N.W. Ontario [PDF]

The Quetico Belt lies between the metavolcanic Wawa-Shebandowan and Wabigoon Belts. It consists of marginal metasedimentary rocks and central pelitic, gneissic and plutonic rocks.
Percival, J. A.
core   +1 more source

Isothermal Thermoluminescence Dating of Coral Reef Calcite: Implications for Sea‐Level Change

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Reconstructing past sea‐level changes is critical in Quaternary science. On remote oceanic reefs, aragonite‐to‐calcite alteration occurs during subaerial exposure, directly recording the timing of sea‐level fall. U–Th dating of coral calcite is challenging due to open‐system issues.
Junjie Wei, Hui Zhao, Junjie Zhang, Haiwei Zhang, Leibin Wang, Yupei Li, Dongxue Li, Shuai Zhang, Kefu Yu, Jianjun Qu   +9 more
wiley   +1 more source

Neogene plant macrofossils from West Antarctica reveal persistence of Nothofagaceae forests into the early Miocene. [PDF]

Commun Earth Environ
Bastias-Silva J, Leppe M, Manriquez L, Trevisan C, Fox BRS, Magiera M, Wilson G, Tavazzani L, Chelle-Michou C, Gao L, Szymanowski D, Mansilla H, Silva C, Hervé F, Tapia C.   +14 more
europepmc   +2 more sources

Progress in geochronology: not only timing, but also rate. [PDF]

Natl Sci Rev
Li XH.
europepmc   +1 more source

Excess ⁴⁰Ar retention in metamorphosed amphibole complicates ⁴⁰Ar/³⁹Ar geochronological interpretation of diabase. [PDF]

Sci Rep
Zhang WF, Wang JJ, Chen JL, Zheng DW, Ma L, Xiao M, Zhang YL, Jiang YD, Xu YG.   +8 more
europepmc   +1 more source

Petrogenesis of Late Permian Mafic Rocks in the Western Guangxi Area, SW China: Implications for the Emeishan Mantle Plume Magmatism. [PDF]

ACS Omega
Zhang Y, Zhang Z, Yuan Y.
europepmc   +1 more source

High- and ultrahigh-spatial-resolution geochronology. [PDF]

Natl Sci Rev
Li QL, Wang H.
europepmc   +1 more source

Re-Os geochronology for sulfides and organic-rich sediments. [PDF]

Natl Sci Rev
Li Y, Glorie S, Selby D.
europepmc   +1 more source

Magnetostratigraphic constraints on the late Ediacaran paleomagnetic enigma. [PDF]

Sci Adv
Pierce JS, Evans DAD, Polomski DE, Youbi N, Mediany MA, Ounar J, Oukhro R, Boumehdi MA, Strauss JV, Keller CB, Gärtner A, Ovtcharova M, Wotzlaw JF, Linnemann U.   +13 more
europepmc   +1 more source