نتایج جستجو برای: plio quaternary lavas

تعداد نتایج: 16137  

Journal: :Geosciences 2023

At the end of November 2021, a large area Puglia (an administrative region in Southern Italy) was officially nominated as new aUGGp (aspiring UNESCO Global Geopark) by Italian National Commission UNESCO. This comprises northwestern part Murge territory, where Cretaceous sector Apulia Carbonate Platform crops out, and adjacent Premurge southwestward lateral continuation same platform (being flex...

2015
Justin W. Adams Angela Olah Matthew R. McCurry Stephany Potze Brenda A Wilson

Nearly a century of paleontological excavation and analysis from the cave deposits of the Cradle of Humankind UNESCO World Heritage Site in northeastern South Africa underlies much of our understanding of the evolutionary history of hominins, other primates and other mammal lineages in the late Pliocene and early Pleistocene of Africa. As one of few designated fossil repositories, the Plio-Plei...

2016
Shichun Huang Munir Humayun

The role of a mafic component in the petrogenesis of Oceanic Island Basalts (OIBs) is highly debated. As the best studied OIB, Hawaiian lavas provide critical insights into OIB genesis. At a given MgO content, the CaO content in the melt has been used to distinguish between partial melts of peridotite and garnet pyroxenite/eclogite. However, calculations using the BATCH program show that CaO co...

1998

Samples of basalt were collected during the Rapid Response cruise to Loihi seamount from a breccia that was probably created by the July to August 1996 Loihi earthquake swarm, the largest swarm ever recorded from a Hawaiian volcano. Po–Pb dating of two fresh lava blocks from this breccia indicates that they were erupted during the first half of 1996, making this the first documented historical ...

Journal: :Journal of Volcanology and Geothermal Research 2021

We present the description and interpretation of a James Ross Island Volcanic Group (JRIVG) succession around Cerro Domo Ventisqueros Mesa area. Our aim is to reconstruct volcanic evolution provide new palaeoenvironmental information for northwest sector Island, northern Antarctic Peninsula . representative stratigraphic logs that are combined with chronological constraints provided by 40 Ar/ 3...

2003
S. Mukhopadhyay J. C. Lassiter K. A. Farley S. W. Bogue

[1] We measured He, Sr, Nd, Pb, and Os isotope ratios and major and trace element concentrations in stratigraphically and paleomagnetically controlled shield-stage lavas from Kauai, Hawaii. The range of He/He ratios (17–28 RA) from Kauai is similar to that reported from Loihi and thus challenges the prevailing notion that high He/He ratios are restricted to the preshield stage of Hawaiian magma...

Journal: :Geosphere 2021

Abstract We present new Sr-Nd-Pb-Hf isotopic data on mafic lavas from the Sivas, Develida?, Erciyes, and Erkilet volcanic complexes in central Turkey Tendürek eastern to evaluate mantle sources for volcanism context of geodynamic evolution Anatolian microplate. Early Miocene through Quaternary Western Anatolia latest activity Central were dominated by contributions two distinct source regions: ...

2014
S. Huang F. A. Frey

[1] The temporal geochemical variations defined by lavas erupted throughout the growth of a single volcano provide important information for understanding how the Hawaiian plume works. The Hawaii Scientific Drilling Project (HSDP) sampled the shield of Mauna Kea volcano to a depth of 3100 meters below sea level during Phase 2 of the HSDP. Incompatible element abundance ratios, such as La/Yb, Sm...

Journal: :E3S web of conferences 2021

This paper aims to determine the hydrogeochemical characteristics of Fez-Meknes free water table thought monitoring physicochemical analyses nine samples during year 2013, 2016, and 2019. table, which circulates in plio-quaternary formations, is generally supplied by rainfall infiltration, irrigation returns also lateral inflow unconfined liasic Middle Atlas Tabular. Analyses were performed for...

Journal: :Bioinformatics 2011
Olga Ivchenko Erfan Younesi Mohammad Shahid Antje Wolf Bernd Müller Martin Hofmann-Apitius

MOTIVATION Biomedical ontologies have proved to be valuable tools for data analysis and data interoperability. Protein-ligand interactions are key players in drug discovery and development; however, existing public ontologies that describe the knowledge space of biomolecular interactions do not cover all aspects relevant to pharmaceutical modelling and simulation. RESULTS The protein--ligand ...

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