Results 81 to 90 of about 4,534 (235)

An investigation into the diet of elephant fish (Callorhinchus milii) in the waters of Aotearoa/New Zealand

Journal of Fish Biology, EarlyView.
Abstract Chondrichthyans (sharks, rays and chimaeras) are increasingly understood to be an important part of ocean ecosystems, but their ecological role is unclear. Callorhinchus milii (elephant fish) is a chimaera species endemic to Aotearoa/New Zealand and southern Australian waters.
Kat U. C. Cooper, Ashley A. Rowden, Darren Stevens, Brittany Finucci   +3 more
wiley   +1 more source

PALEOGUYOTS OF THE DZHIDA ISLAND-ARC SYSTEM OF THE PALEO-ASIAN OCEAN: STRUCTURE, COMPOSITION, AGE, COMPARATIVE ANALYSIS WITH SIMILAR STRUCTURES OF THE CENTRAL ASIAN FOLD BELT, GEODYNAMIC MODELS

Геодинамика и тектонофизика
The Dzhidot and Urgol large paleoguyots and a number of smaller fragments of oceanic islands close in composition to the paleoguyots within the accretionary-collisional structures of the north-eastern part of the Central Asian orogenic belt are ...
I. V. Gordienko, M. A. Gornova, А. L. Elbaev, A. Ya. Medvedev, V. S. Lantseva   +4 more
doaj   +1 more source

Life strategies for Aminicenantia in subseafloor oceanic crust. [PDF]

ISME J, 2023
Booker AE, D'Angelo T, Adams-Beyea A, Brown JM, Nigro O, Rappé MS, Stepanauskas R, Orcutt BN.   +7 more
europepmc   +1 more source

(Ultra)high‐Pressure Metamorphism in Sedimentary Versus Basaltic Rocks: Insights From a Variscan Mélange in the South Carpathians

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva, Bruno V. Ribeiro, Gavril Săbău, Fabricio Caxito, Paulo A. de Paiva‐Silva, Pierre Lanari, George Luvizotto, Mahyra Tedeschi   +7 more
wiley   +1 more source

Spatial Heterogeneity of Pore Structure in the Crustal Section of the Samail Ophiolite: Implications for High VP/VS Anomalies in Subducting Oceanic Crust

Geophysical Research Letters
Seismic surveys along subduction zones have identified anomalously high ratio of P‐ to S‐wave velocity (VP/VS) in the subducting oceanic crust that are possibly due to the presence of pore water.
Y. Akamatsu, T. Kuwatani, I. Katayama
doaj   +1 more source

Saline fluids play a major role in continental crust formation

Frontiers in Earth Science
A new general perspective on the long-standing problem of continental crust formation is presented in this study. Unlike prevailing models for continental crust formation that rely heavily on the behavior of major and trace elements in silicate melts in ...
Paterno R. Castillo
doaj   +1 more source

Tracing fluid infiltration into oceanic crust up to ultra-high-pressure conditions. [PDF]

Contrib Mineral Petrol, 2023
Rubatto D, Williams M, Markmann TA, Hermann J, Lanari P.   +4 more
europepmc   +1 more source

Metamorphic Reactivity Influences Amphibole Creep Behaviour

Journal of Metamorphic Geology, EarlyView.
ABSTRACT The rheological behaviour of solid‐solution minerals may play an important role in determining how metamorphic crust accommodates deformation. Whether or not a mineral's deformation is diffusion or dislocation‐mediated depends on a range of extrinsic variables such as stress, strain rate and temperature, as well as intrinsic variables such as ...
Alix Osinchuk, Brendan V. Dyck, Jesse B. Walters   +2 more
wiley   +1 more source

Reply to Zou et al.: Neoarchean eclogite-facies oceanic crust in the North China Craton. [PDF]

Proc Natl Acad Sci U S A, 2022
Ning W, Kusky T, Wang L, Huang B.
europepmc   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source