Results 11 to 20 of about 394,950 (321)

Spatial and temporal variations of Rb/Sr ratios of the bulk surface sediments in Lake Qinghai

open access: yesGeochemical Transactions, 2010
The Rb/Sr ratios of lake sediments have been suggested as indicators of weathering intensity by increasing work. However, the geochemistry of Rb/Sr ratios of lake sediments is variable between different lakes.
Liu Bin, Xu Hai, Wu Feng
doaj   +2 more sources

湖底堆積物中のRb/Sr比は気候変動の指標となるか [PDF]

open access: green, 2016
2016-03The long-term and high time resolution analysis of inorganic elements from Lake Baikal sediment revealed that source provenance of Rb has been changed during last glacial and post glacial period.
郁子 奈良   +13 more
openalex   +2 more sources

Rb/Sr isotopic and compositional retentivity of muscovite during deformation.

open access: yesLithos, 2015
Permian metapegmatite muscovite from the Upper-Austroalpine Matsch Unit in Southern Tyrol (Italy) was investigated regarding its Rb/Sr and compositional retentivity during Cretaceous Upper-greenschist facies deformation.
Eberlei T   +6 more
europepmc   +2 more sources

On the viability of detrital Rb-Sr geochronology

open access: yes
Re-examination of sediment samples collected from the Bay of Bengal via laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) Rb-Sr geochronology demonstrates the viability of the Rb-Sr system for use as a detrital chronometer. The age population defined by the Rb-Sr dates essentially reproduces that previously published for detrital ...
Kyle P Larson   +4 more
openaire   +2 more sources

Design, development and performance evaluation of tractor-drawn raised-bed pulse-planter for precision sowing of pigeonpea (Cajanus cajan)

open access: yesThe Indian Journal of Agricultural Sciences, 2020
In order to promote pulse productivity in India, our government has given prime emphasis on farm mechanization in pulse farming so as to enhance their acreage and productivity under pulses. In this direction, IARI-New Delhi has developed a tractor-drawn
RAJEEV KUMAR   +3 more
doaj   +1 more source

Rb-Sr dataset.xlsx

open access: yes, 2023
Rb-Sr dataset for manuscript entitled `Calibration methods for laser ablation Rb-Sr geochronology: comparisons and recommendation based on NIST glass and natural reference materials`
Stijn Glorie (4210096)
core   +1 more source

Geochemistry of the Precambrian Basement of the Bamenda massif of southeastern Nigeria: petrogenesis and tectonic setting

open access: yesGeologica Acta, 2020
Trace and Rare-Earth element geochemical study of twenty samples of migmatitic banded gneisses, garnet biotite schists, dolerites, granites and rhyolites was carried out in a bid to determine their petrogenetic and tectonic significance in the evolution ...
C.U. Ibe
doaj   +3 more sources

Geochemical Criteria for Discriminating Shallow and Deep Environments in Oligocene-Miocene Succession, Western Iraq

open access: yesIraqi Geological Journal, 2022
The geochemical study of the Oligocene-Miocene succession Anah, Euphrates, and Fatha formations, western Iraq, was carried out to discriminate their depositional environments.
Farah Turki, Salih Awadh
doaj   +1 more source

GEOCHEMISTRY OF TRACE ELEMENTS IN ROCK-FORMING MINERALS OF GNEISSES AND GRANITES OF THE MURZINKA GRANITE AREA, CENTRAL URALS [PDF]

open access: yesМинералогия, 2020
The Murzinka granite area (Central Urals), which combines Murzinka granite pluton and underlying rocks of the Murzinka-Adui metamorphic complex, exhibits an evident WE-trending geochemical zonation of magmatism with increasing of Rb, Li, Nb and Ta ...
S.V. Pribavkin   +2 more
doaj   +1 more source

LA-ICP-MS/MS-based Rb-Sr isotope mapping for geochronology

open access: yes, 2023
This study introduces a new approach for in-situ Rb-Sr dating that utilizes rapid line scans instead of static spot ablation, enabling the creation of two-dimensional 87Rb/86Sr and 87Sr/86Sr isotope ratio and Rb-Sr age maps.
Martin, Kutzschbach, Johannes, Glodny
core   +1 more source

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