Results 71 to 80 of about 150,821 (225)

Using Integrated 2D and 3D Resistivity Imaging Methods for Illustrating the Mud-Fluid Conduits of the Wushanting Mud Volcanoes in Southwestern Taiwan

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2011
We conducted 2D and 3D looped resistivity surveys in the Wushanting Natural Landscape Preservation Area (WNLPA) in order to understand the relationships of the mud-fluid conduits in the mud volcano system.
Ping-Yu Chang   +3 more
doaj   +1 more source

Diapir structure and its constraint on gas hydrate accumulation in the Makran accretionary prism, offshore Pakistan

open access: yesChina Geology, 2020
: The Makran accretionary prism is located at the junction of the Eurasian Plate, Arabian Plate and Indian Plate and is rich in natural gas hydrate (NGH) resources.
Zhen Zhang   +9 more
doaj   +1 more source

Technologies of Transition: Pottery Production and Specialization in Early Rome and Its Neighbors. Neutron Activation Analysis of Regional Assemblages and a Mineralogical‐Petrographic Study of Impasto Chiaro‐Sabbioso

open access: yesArchaeometry, EarlyView.
ABSTRACT The following paper investigates ceramic production and signs of specialization in Rome and the wider region during the early first millennium bce, through an archaeometric approach using Instrumental Neutron Activation Analysis (NAA), and complementary techniques.
Mattia D'Acri   +4 more
wiley   +1 more source

Surface deformation and source modeling of Ayaz-Akhtarma mud volcano, Azerbaijan, as detected by ALOS/ALOS-2 InSAR

open access: yesProgress in Earth and Planetary Science, 2018
Azerbaijan, located on the western edge of the Caspian Sea in Central Asia, has one of the highest populations of mud volcanoes in the world. We used satellite-based synthetic aperture radar (SAR) images derived from two L-band SAR satellites, ALOS ...
Kento Iio, Masato Furuya
doaj   +1 more source

Crossing Ceramic Decoration Boundaries: Compositional and Morphological Analyses of the Mortuary Assemblage From Maridíaz (Nariño, Colombia)

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper examines the interaction of two ware traditions in the Maridíaz mortuary assemblage (Pasto, Nariño, Colombia), a rare, well‐documented cemetery context in which Piartal, Tuza, and hybrid vessels co‐occur. Using portable X‐ray fluorescence (n = 39) and 3D geometric morphometrics (n = 25), we find shared ceramic compositions ...
Catherine Klesner   +4 more
wiley   +1 more source

Evaporitic Chert Provenance: Evaluating Petrographic and Geochemical Workflows for Source Discrimination

open access: yesArchaeometry, EarlyView.
ABSTRACT Chert tools were widely used in prehistory by human societies due to their knapping suitability and availability, but their relatively uniform composition, especially in evaporitic cherts, complicates sourcing, requiring specialised analytical methods.
Bruno Gómez de Soler   +5 more
wiley   +1 more source

Diversity and Spatial Distribution of Prokaryotic Communities Along A Sediment Vertical Profile of A Deep-Sea Mud Volcano Maria G. Pachiadaki & Argyri Kallionaki [PDF]

open access: yes, 2011
We investigated the top 30-cm sediment prokaryotic community structure in 5-cm spatial resolution, at an active site of the Amsterdam mud volcano, East Mediterranean Sea, based on the 16S rRNA gene diversity.
Anke Dählmann   +12 more
core   +1 more source

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

open access: yesBoreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida   +5 more
wiley   +1 more source

Hydrous Carbonatitic Liquids Drive CO2 Recycling From Subducted Marls and Limestones

open access: yesGeophysical Monograph Series, Page 209-221., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Erwin Schettino, Stefano Poli
wiley  

+1 more source

Methanogen activity and microbial diversity in Gulf of Cádiz mud volcano sediments. [PDF]

open access: yesFront Microbiol, 2023
Webster G   +6 more
europepmc   +1 more source

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