Results 91 to 100 of about 8,100 (227)

Enhanced U-Pb detrital zircon, Lu-Hf zircon, δ18O zircon, and Sm-Nd whole rock global databases

open access: yes, 2023
High-quality global isotopic databases provide Earth scientists with robust means for developing and testing a variety of geological hypotheses. Database design establishes the range of questions that can be addressed, and validation techniques can ...
Stephen Puetz (17666721)   +3 more
core   +1 more source

Spatial and temporal evolution of a coastal erg margin: the Middle Jurassic Page Sandstone, southern Utah, USA

open access: yesSedimentology, EarlyView.
ABSTRACT Aeolian deflationary events are erosive to static stages where sediment supply is insufficient to support bedform migration and preservation in the rock record. In the vicinity of shallow‐marine environments, inland rises of relative water table and associated generation of deflationary super surfaces may be driven by the onset of ...
Victor J. P. Hême de Lacotte   +4 more
wiley   +1 more source

Local Singularity Spectrum: An Innovative Graphical Approach for Analyzing Detrital Zircon Geochronology Data in Provenance Analysis

open access: yesFractal and Fractional
Detrital zircon geochronology plays a crucial role in provenance analysis, serving as one of the fundamental strategies. The age spectrum of detrital zircons collected from the sedimentary unit of interest is often compared or correlated with that of ...
Wenlei Wang   +3 more
doaj   +1 more source

Emergence of Continents Stabilized the Bioavailability of Boron

open access: yesTerra Nova, EarlyView.
ABSTRACT Boron is an essential element for the development of life on Earth; borates stabilize ribose in prebiotic reactions and facilitate metabolism in higher plants. There is, however, a relatively narrow surface boron concentration range over which borates stabilize and serve as a micronutrient rather than a toxin.
Brendan V. Dyck, Jon Wade
wiley   +1 more source

The role of detrital zircons in Hadean crustal research

open access: yesLithos, 2014
Abstract Meso-Archean sedimentary sequences at Mt. Narryer and the Jack Hills of the Narryer Terrane in Western Australia's Yilgarn Craton contain detrital zircon grains with ages as old as 4.37 Ga, the oldest preserved terrestrial matter. These grains are rare remnants of Hadean (4.5–4.0 Ga) terrestrial crust and their survival stems from the ...
Nebel, Oliver   +2 more
openaire   +2 more sources

Detrital zircon U–Pb ages of the Upper Vindhyan sequence from the Bhander Sandstone of the Bhopal Inlier in Central India and its implications for provenance of the Vindhyan Basin

open access: yesJournal of the Palaeontological Society of India
This study presents the detrital zircon U–Pb ages of the Upper Bhander Sandstone from the Bhopal Inlier, Central India. The age spectra of Upper Bhander Sandstone show the dominance of a detrital zircon population between 1,500 and 1,900 Ma, a ...
Vandana Kumari   +3 more
doaj   +1 more source

The timing of the initial collision between the South and North China blocks constraining from the sediments in the eastern Sichuan Basin

open access: yesScientific Reports, 2023
In this study, detrital zircon U–Pb geochronology, trace element and Hf isotopic compositional data from the Early-Middle Triassic clastic rocks in the eastern Sichuan Basin were obtained to distinguish the sediment provenance and constrain the timing of
Tianjia Liu   +8 more
doaj   +1 more source

The continental record and the generation of continental crust

open access: yes, 2012
Continental crust is the archive of Earth history. The spatial and temporal distribution of Earth's record of rock units and events is heterogeneous; for example, ages of igneous crystallization, metamorphism, continental margins, mineralization, and ...
Hawkesworth, Chris   +8 more
core   +1 more source

Raw Data of U-Pb LA-ICP-MS Detrital Zircon Measurement (Data Set S1) and U-Pb LA-ICP-MS Detrital Zircon Data (Data Set S2)

open access: yes, 2022
Data Set S1 contains raw data of U-Pb LA-ICP-MS detrital zircon measurement of sandstone samples in the Nemuro and Urahoro Groups. The file contains all data of zircon grains from sandstone samples and also primary standard (i.e., NIST SRM 612, Nancy ...
Hirata, Takafumi   +3 more
core   +1 more source

Plio-Quaternary exhumation history of the central Nepalese Himalaya: 1. Apatite and zircon fission track and apatite [U-Th]/He analyses [PDF]

open access: yes, 2007
New apatite and zircon fission track and (U-Th)/He analyses serve to document the bedrock cooling history of the central Nepalese Himalaya near the Annapurna Range.
Putkonen, J   +14 more
core   +1 more source

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