Results 131 to 140 of about 87,352 (275)

A mineral reconnaissance survey of the Abington-Biggar-Moffat-area, south-central Scotland [PDF]

open access: yes, 1979
Panned heavy mineral concentrates, mostly obtained from stream sediments, were collected from 195 sites in the Abington-Biggar-Moffat area. The project area, which lies immediately east of the formerly important mining district of Wanlockhead ...
Dawson, J., Floyd, J.D., Phillip, P.R.
core  

LA-ICP-MS U-Pb geochronology of detrital zircons from the Jining Complex, North China Craton and its tectonic significance [PDF]

open access: yes, 2006
LA-ICP-MS U-Pb zircon dating and cathodoluminescene (CL) image analysis were carried out to determine the protolith and metamorphic ages of high-grade Al-rich gneisses, named as "khondalites", from the Jining Complex of the North China Craton (NCC).
Luo, Y, Sun, M, Xia, X, Zhao, G
core   +1 more source

Grain selection for representative detrital zircon age populations

open access: yesEarth and Planetary Science Letters
http://dx.doi.org/10.13039/501100009108 Minerals Research Institute of Western ...
Andreas Zametzer   +4 more
openaire   +2 more sources

Late Paleozoic tectonic evolution of the Qinling Orogenic Belt: Constraints and insights from detrital zircon U–Pb geochronology in the Western Qinling

open access: yesDizhi lixue xuebao
Objective  The Qinling Orogenic Belt, positioned between the Yangtze and North China cratons, has undergone a multi-stage evolution from the Paleozoic to the Early Mesozoic, fully documenting the collisional orogenic history between both cratons ...
LI Chenghao   +6 more
doaj   +1 more source

A synthesis of available detrital zircon data from Turkey, Cyprus and Greek peninsula

open access: yesGeoscience Data Journal
This paper describes the assembly of an updated dataset of detrital zircon geochronology and Lu–Hf isotopes for Turkey, Cyprus and Greek peninsula. This first version of the dataset documented 286 samples with detrital zircon U–Pb data and 70 samples ...
Guohui Chen   +3 more
doaj   +1 more source

Laser ablation U/Pb age patterns of detrital zircons in the Schlieren Flysch (Central Switzerland): new evidence on the detrital sources [PDF]

open access: yes, 2018
The palaeogeographic attribution of the Schlieren Flysch and its counterparts in the Gurnigel Nappe is still a matter of debate. These Late Alpine deep-sea trench deposits show a variable tectonic thrust relationship with other nappes inferring either an
Bütler, Endrio   +2 more
core  

A database of detrital zircon U–Pb geochronology and Hf isotopes from the Songpan–Ganzi and Western Qinling terranes

open access: yesGeoscience Data Journal
Since the advent of detrital geochronology, significant progress has been made in the study of sedimentary sources. The detrital zircon U–Pb age spectrum, especially when combined with zircon Hf isotopes, provides a powerful tool for determining the ...
Yingdi Pan, Xiumian Hu
doaj   +1 more source

U-Pb geochronology of the El Jadida rhyolite and relation to possible Lower Cambrian recycling (Coastal block, Moroccan Meseta). [PDF]

open access: yes, 2018
The El Jadida (Mazagan) dome, whose existence was reported as early as 1934 by Yovanovitch and Freys, constitutes one of the first outcrops of the Moroccan Meseta where the Precambrian (PIII?)-Paleozoic (Lower Cambrian?) boundary was established (Gigout,
El Attari, A.   +8 more
core  

Continental Crust Rejuvenation Across the Paleo‐Mesoarchean Transition Resulted From Elevated Mantle Geotherms

open access: yesGeophysical Research Letters
The increase in initial Hf isotopes identified in early Mesoarchean detrital zircon is commonly interpreted as a reflection of the geodynamic transition from stagnant‐lid to mobile‐lid tectonics.
Gui‐Mei Lu   +5 more
doaj   +1 more source

Detrital zircon–apatite fingerprinting challenges glacial transport of Stonehenge’s megaliths

open access: yesCommunications Earth & Environment
How Stonehenge’s building blocks arrived on Salisbury Plain remains debated, with glacial and human transport mechanisms proposed. Here we test the possibility of Pleistocene glacial sediment input using grain-scale U–Pb fingerprinting of detrital zircon
Anthony J. I. Clarke   +1 more
doaj   +1 more source

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