Results 61 to 70 of about 40,674 (250)
Introduction to special section: Hawaii Scientific Drilling Project [PDF]
, 1996 Intraplate or "hot spot" volcanic island chains, exemplified by Hawaii, play an important role in plate tectonic theory as reference points for absolute plate motions, but the origin of these volcanoes is not explained by the plate tectonic paradigm ...
DePaolo, Donald J. +2 more
core +1 more source
Environmental Toxicology, EarlyView.ABSTRACT Plastic, with its remarkable versatility and numerous applications, has greatly benefited humanity. However, its extreme resistance to natural degradation means it persists in the environment for long periods, causing global environmental problems.
Teresa Chianese +13 more
wiley +1 more source
The Timbavati Gabbro of the Kruger National Park
Koedoe: African Protected Area Conservation and Science, 1986 The structure, geochemistry and isotope geochemistry of the Timbavati Gabbro, a suite of basic, intrusive sills located within and outside the Kruger National Park, are discussed.
F. Walraven
doaj +1 more source
Reconciling the shadow of a subduction signature with rift geochemistry and tectonic environment in Eastern Marie Byrd Land, Antarctica [PDF]
, 2016 Basalt-trachyte volcanoes in the Marie Byrd Land (MBL) Cenozoic province lie along the Amundsen Sea coast on the north flank of the West Antarctic rift.
Choi, Sung Hi +4 more
core +1 more source
X-Ray Spectrometry, EarlyView.ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula +7 more
wiley +1 more source
Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics [PDF]
, 2006 Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Downes, Hilary, Wilson, M.
core +1 more source
Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS
Geostandards and Geoanalytical Research, EarlyView.Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro +7 more
wiley +1 more source
The late Mesozoic-Cenozoic tectonic evolution of the South China Sea: A petrologic perspective [PDF]
, 2014 This paper presents a review of available petrological, geochonological and geochemical data for late Mesozoic to Recent igneous rocks in the South China Sea (SCS) and adjacent regions and a discussion of their petrogeneses and tectonic implications. The
Castillo, PR, Shi, X, Yan, Q
core +2 more sources
Geostandards and Geoanalytical Research, EarlyView.Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister +10 more
wiley +1 more source
Journal of Metamorphic Geology, EarlyView.ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi +4 more
wiley +1 more source