Results 131 to 140 of about 153,348 (348)

SHRIMP U-Pb Geochronology of the Socorro Batholith and implications for the Neoproterozoic evolution in SE Brazil

open access: yesBrazilian Journal of Geology
: The Socorro Batholith is one of the most expressive granite manifestations associated with the Neoproterozoic evolution in SE Brazil, occupying large areas (~1,200 km 2 ) in the southern portion of the Socorro-Guaxupé Nappe.
Bárbara Bueno Toledo   +2 more
doaj   +1 more source

Ages on weathered Plio-Pleistocene tephra sequences, western North Island, New Zealand [PDF]

open access: yes, 2001
Using the zircon fission-track method, we have obtained five ages on members of two strongly-weathered silicic, Pliocene-Pleistocene tephra sequences, the Kauroa and Hamilton Ash formations, in western North Island, New Zealand.
Briggs, Roger M.   +5 more
core   +1 more source

BADDELEYITE MINERALIZATION OF ULTRAMAFIC ROCKS FROM THE MAIN URALS COLLISIONAL SUTURE (UFALEY METAMORPHIC BLOCK, CENTRAL URALS) [PDF]

open access: yesМинералогия, 2016
Baddeleyite from ultramafic rocks of the Kurta eclogite-schist megamélange (Ufaley metamorphic block, Central Urals) is studied. The zirconium mineralization is established in Ni-bearing forsterite and magnetite-forsterite rocks, which were replaced by ...
A.I. Belkovsky, A.R. Nesterov
doaj  

Mineralogical and geochemical characteristics of rare earth mineralisation in the Middle Dnipro region (on the example of the Kotlyarivka ore occurence)

open access: yesМінеральні ресурси України
The article presents a mineralogical, petrographic, and geochemical characterization of the rare earth mineralization of the Kotlyarivka ore occurrence, which was discovered by drill hole 114 in the south-western part of the Krynychky plagiogranite ...
V. V. Sukach   +2 more
doaj   +1 more source

Effect of chemical composition on zircon radiation damage dating: Implications for low-temperature thermochronology

open access: hybrid, 2023
Mingpu Fan   +5 more
openalex   +1 more source

Formation Age and its Geological Significance of Quartz Diorite from Cryptoexplosive Breccia in Dalucao Rare Earth Mine, Sichuan Province

open access: yesKuangchan zonghe liyong
To limit the diagenetic age of quartz diorite in the crypto-explosion breccia of the Dechang Dalucao in Sichuan Province, LA-ICP-MS zircon U-Pb chronology was carried out.
Wei YANG   +6 more
doaj   +1 more source

Simultaneous Determination of U-Pb Age and Trace Elements of Zircon by Laser Ablation Sector Field Inductively Coupled Plasma-Mass Spectrometry

open access: yesYankuang ceshi
Laser ablation sector field inductively coupled plasma-mass spectrometry (LA-SF-ICP-MS) is widely applied in U-Pb dating of zircon due to its remarkable sensitivity.
Linghao ZHAO   +5 more
doaj   +1 more source

Shock Deformation in Zircon, a Comparison of Results from Shock-Reverberation and Single-Shock Experiments [PDF]

open access: yes
The utility of the mineral zircon, ZrSiO4, as a shock-metamorphic geobarometer and geochronometer, has been steadily growing within the planetary science community.
Cintala, M. J.   +4 more
core   +1 more source

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