Results 91 to 100 of about 45,988 (266)

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +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]

, 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, D. W. Burbank, Blythe, A.E., Carter, Andrew, Putkonen, J., Blythe, AE, K. Schmidt, Carter, A, Schmidt, K, Schmidt, K., A. E. Blythe, J. Putkonen, A. Carter, Burbank, DW, Burbank, D.W.   +14 more
core   +1 more source

Coupled Zircon-Rutile U-Pb Chronology: LA ICP-MS Dating, Geological Significance and Applications to Sediment Provenance in the Eastern Himalayan-Indo-Burman Region

Geosciences, 2019
U-Pb dating by LA ICP-MS is one of the most popular and successful isotopic techniques available to the Earth Sciences to constrain timing and rates of geological processes thanks to its high spatial resolution, good precision (absolute U/Pb age ...
Laura Bracciali
doaj   +1 more source

Lithology and provenance of late Eocene - Oligocene sediments in eastern Taranaki Basin margin and implications for paleogeography [PDF]

, 2009
The latest Eocene and Oligocene was a time of marked paleoenvironmental change in Taranaki Basin, involving a transition from the accumulation of coal measures and inner shelf deposits to the development of upper bathyal environments. Up until the end of
Hopcroft, Bradley Scott
core  

Zircons and zircon’s geochronology of gabbro Nurali massif (the Southern Urals)

Литосфера, 2018
Object. In the article presents the the results of mineralogy, geochemistry and isotope-chronological investigation of zircons from gabbro Nurali massif. Materials and methods . Amphibole gabbro is the fine-grained and massive texture rock, which cosists
Artur A. Krasnobaev, Petr M. Valizer
doaj   +1 more source

New insights into the zircon-reidite phase transition [PDF]

, 2019
The structure, the elastic properties, and the Raman frequencies of the zircon and reidite polymorphs of ZrSiO4 were calculated as a function of hydrostatic pressure up to 30 GPa using HF/DFT ab initio calculations at static equilibrium (0 K).
Mihailova, Boriana, Angel, Ross J., Alvaro, Matteo, Prencipe, M., Stangarone, Claudia, Prencipe, Mauro   +5 more
core   +1 more source

Geochronological and structural constraints on the Cretaceous thermotectonic evolution of the Kraishte zone (Western Bulgaria) [PDF]

, 2010
In the Kraishte region, near the junction of the Balkanides and Dinarides, late Early Cretaceous compression led to the thrusting of the Morava unit over the Struma unit.
Bernoulli, D., Ivanov, Z., Kounov, A., Handler, R., Burg, J. -P., Seward, D.   +5 more
core   +1 more source

Bias in detrital zircon geochronology and thermochronometry [PDF]

, 2013
Detrital studies that utilise zircon U-Pb geochronology and fission-track (FT) thermochronometry are subject to a range of potential sources of bias that should be properly evaluated and minimised.
Garzanti, Eduardo, Malusà, M.G., Malusà, Marco G., Carter, Andrew, Limoncelli, M., Garzanti, E., Villa, Igor Maria, Villa, I.M., Limoncelli, Marta   +8 more
core   +1 more source

Testing the fidelity of zircon as a provenance indicator in fluvial‐fan successions: An example from the Palaeogene Colton Formation, Central Utah, USA

The Depositional Record
The stratigraphic, spatial and temporal variability of detrital zircon age populations in continental sedimentary successions is a critical tool in understanding palaeodrainage networks and how these systems distributed detritus within sedimentary basins.
Davide Carraro, Sean P. Gaynor, Dario Ventra, Alexey Ulyanov, Andrea Moscariello   +4 more
doaj   +1 more source

Thermo‐Tectonic History of Archean Basement Rocks in the Aktash Tagh, Southeastern Tarim Craton: Constraints From Zircon U‐Pb, Zircon and Apatite Fission‐Track Dating

Geochemistry, Geophysics, Geosystems
Stable craton lithosphere can undergo complex tectonic events at its margins due to peripheral tectonic activity. In this study, we conducted a comprehensive analysis of zircon U‐Pb dating, apatite and zircon fission‐track thermochronology on the Aktash ...
Xiao Hu, Zhiyuan He, Ganqing Xu, Johan DeGrave, Rongfeng Ge, Guangwei Li, Wenbin Zhu   +6 more
doaj   +1 more source