Results 41 to 50 of about 7,754 (208)

Stratigraphy and development of the Late Miocene-Early Pleistocene Hawke’s Bay forearc basin [PDF]

, 2004
A Late Miocene-Early Pleistocene mixed carbonate-siliciclastic sedimentary succession about 2 500 m thick in the Hawke’s Bay forearc basin is the focus of a basin analysis. The area under investigation covers 3 500 km2 of western and central Hawke’s Bay.
Nelson, Campbell S., Kamp, Peter J.J., Bland, Kyle J.   +2 more
core  

Variations in Forearc Stress and Changes in Principle Stress Orientations Caused by the 2004–2005 Megathrust Earthquakes in Sumatra, Indonesia

Frontiers in Earth Science, 2021
Coseismic changes in principal stress orientation in the northern Sumatra subduction zone due to two giant megathrust earthquakes there in 2004 and 2005 are estimated to investigate the in-situ stress.
Muhammad Taufiq Rafie, Phil R. Cummins, Phil R. Cummins, David P. Sahara, Sri Widiyantoro, Sri Widiyantoro, Wahyu Triyoso, Andri Dian Nugraha   +7 more
doaj   +1 more source

LATE TRIASSIC OBLIQUE EXTRUSION OF UHP/HP COMPLEXES IN THE ATBASHI ACCRETIONARY COMPLEX OF SOUTH TIANSHAN, KYRGYZSTAN

Геодинамика и тектонофизика, 2017
The exhumation and tectonic emplacement of eclogites and blueschists take place in forearc accretionary complexes by either forearc- or backarc-directed extrusion, but few examples have been well analysed in detail.
Wenjiao Xiao, Miao Sang, Apas Bakirov, Rustam Orozbaev   +3 more
doaj   +1 more source

Restoring the Missing Late Cretaceous Arc of Iran

Geochemistry, Geophysics, Geosystems
Persistent arc magmatism archives fluid transport and mantle partial melting in subduction zones. However, arc magmatism often exhibits different magmatic records along the strike, as seen in the Tethyan orogenic belt.
Yiyang Lei, Yang Chu, Mark B. Allen, Wei Lin, Bo Wan, Ling Chen, Morteza Talebian, Guangyao Xin, Tanjie Liu, Yilin Guo, Lin Guo   +10 more
doaj   +1 more source

Nature and distribution of slab‐derived fluids and mantle sources beneath the Southeast Mariana forearc rift

Geochemistry, Geophysics, Geosystems, 2013
Subduction zone magmas are produced by melting depleted mantle metasomatized by fluids released from the subducted slab. In most subduction zones, formation of backarc basin (BAB) and arc magmas depletes the mantle source toward the trench, resulting in ...
Julia M. Ribeiro, Robert J. Stern, Katherine A. Kelley, Fernando Martinez, Osamu Ishizuka, William I. Manton, Yasuhiko Ohara   +6 more
doaj   +1 more source

Local earthquake seismic tomography of the Southernmost Mariana subduction zone

Frontiers in Marine Science, 2023
We employed seismic tomography to examine the velocity structure of the upper mantle in the Southernmost Mariana subduction zone. Our study focuses on data collected during a six-month experiment from 15 December 2016 to 12 June 2017, using 11 ocean ...
Dong Li, Dong Li, Chuanxu Chen, Shiguo Wu   +3 more
doaj   +1 more source

Fault Slip Reversals Preceded the Intraplate 2021 Earthquake Series in the Vienna Basin (Central Europe)

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Fault‐slip reversals indicate transient stress changes and may illuminate earthquake preparation processes. Here we present high‐resolution observations of sub‐millimetric creep and slip reversals on the Altaquelle Fault, a Quaternary normal fault in the southern Vienna Basin, preceding a regionally significant intraplate earthquake sequence ...
I. Baroň, J. Jelének, M. Rowberry, R. Melichar, M. del Puy Papí‐Isaba, R. Schultz, J. Balek, J. Stemberk, Ľ. Sokol, H. Hausmann, L. Plan, G. Winkler, B. Grasemann, R. Bürgmann   +13 more
wiley   +1 more source

GRAVITY SURVEYS IN THE NORTH SUMATRA FOREARC

Scientific Contributions Oil and Gas, 2022
Land gravity surveys on the islands of the North Sumatra Forearc have defined regions of high fields and strong gradients, the majority of which seem to be associated with the presence of mafic and ultramafic rocks. The onshore data, obtained in the course of joint LEMIGAS-University of London expeditions, complements marine data obtained by American ...
J. Milsom, Sarjono Dipowirjo, Baizar Sain, J. Sipahutar   +3 more
openaire   +1 more source

Seismic Constraint on Heterogeneous Deformation and Stress State in the Forearc of the Hikurangi Subduction Zone, New Zealand

The Seismic Record, 2021
The Hikurangi subduction zone (HSZ) is the collisional boundary between the Pacific and Australian tectonic plates along the eastern coast of the North Island of New Zealand.
Jeremy M. Gosselin, Pascal Audet, Bill Fry, Emily Warren-Smith   +3 more
doaj   +1 more source

Structural Heterogeneity Shapes Segmentation of Megathrust Earthquakes and Volcanism in Central America

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The mechanisms underlying the patchy distribution of forearc megathrust earthquakes and arc volcanoes in subduction zones remain poorly understood. Here we present a high‐resolution seismic tomographic model of the Central American subduction zone, derived from a joint inversion of local body‐wave and teleseismic Rayleigh‐wave data.
Junhao Zhang, Xin Liu, Dapeng Zhao, Yibo Zang   +3 more
wiley   +1 more source