Results 21 to 30 of about 5,282 (167)

Shallow crustal structure below Mexico City

Geofísica Internacional, 1978
A partir de perfiles directos de refracción sísmica, usando como fuente explosiones de una cantera, se obtuvo una estructura cortical superior de dos capas bajo la Ciudad de México: para la primera capa (2 km de espesor) la velocidad de la onda ...
J. Havskov, S. K. Singh
doaj   +1 more source

Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time

Geochemistry, Geophysics, Geosystems, 2022
The offshore rifted margins of the North Atlantic have a spatially complex crustal structure comprised of variable crustal morphologies, continental blocks, and inherited structures. Recently, deformable plate tectonic models have permitted the interplay
Michael T. King, J. Kim Welford
doaj   +1 more source

Crustal structure beneath Cameroon from EGM2008

Geodesy and Geodynamics, 2014
We used the Earth Gravitational Model (EGM2008) data sets to analyze the regional gravity anomalies and to study the underground structures in Cameroon. We first created a high-resolution Free-Air anomaly database, then corrected the gravity field of the
Ngatchou Heutchi Evariste, Liu Genyou, Tabod Charles Tabod, Kamguia Joseph, Nguiya Severin, Tiedeu Alain, K.E. Xiaoping   +6 more
doaj   +1 more source

Future accreted terranes: a compilation of island arcs, oceanic plateaus, submarine ridges, seamounts, and continental fragments [PDF]

Solid Earth, 2014
Allochthonous accreted terranes are exotic geologic units that originated from anomalous crustal regions on a subducting oceanic plate and were transferred to the overriding plate by accretionary processes during subduction. The geographical regions that
J. L. Tetreault, S. J. H. Buiter
doaj   +1 more source

Integrated Geophysical Study of the Collision Between the North China Craton and the Yangtze Craton and Its Links With Craton Lithospheric Thinning

Frontiers in Earth Science, 2022
Unlike stable cratons elsewhere in the world, the lithosphere is strongly thinned in the east of both the North China Craton (NCC) and the Yangtze Craton (YZC) compared with the west.
Lihua Liu, Lihua Liu, Tianyao Hao, Tianyao Hao, Tianyao Hao, Chuanchuan Lü, Zhiqiang Wu, Kwanghee Kim, Hanjoon Kim, Ya Xu, Ya Xu   +10 more
doaj   +1 more source

Using Tidally‐Driven Elastic Strains to Infer Regional Variations in Crustal Thickness at Enceladus

Geophysical Research Letters, 2023
Constraining the spatial variability of the thickness of the ice shell of Enceladus (i.e., the crust) is central to our understanding of the internal dynamics and evolution of this small Saturnian moon.
Alexander Berne, Mark Simons, James T. Keane, Ryan S. Park   +3 more
doaj   +1 more source

New progress on the onshore-offshore seismic survey in East China Continental Margin

Solid Earth Sciences, 2019
The East China Continental Margin (ECCM) is an exemplified natural laboratory not only for studying the origin and evolution of trench-arc-basin system, but also for investigating the deformation mechanism within continent and its margins.
Yun Chen, Tian Cui, Wei-wei Ding, Xiao-dong Wei, Zhi-ming Bai, Ping Tan, Shi-tan Nie, Yang-fan Deng, Shuai Xue, Wei Li, Ji-wen Teng   +10 more
doaj   +1 more source

STRUKTUR KERAK BUMI DI JAWA TIMUR BERDASARKAN ANALISIS FUNGSI PENERIMA TELESEISMIK

JGE, 2021
Jawa Timur merupakan salah satu wilayah Indonesia yang memiliki kondisi tektonik yang aktif. Penelitian ini bertujuan untuk mengetahui struktur kerak bumi di wilayah Jawa Timur meliputi: ketebalan kerak bumi, model kecepatan gelombang P dan S. Penelitian
Puji Ariyanto, Maryam Sidiqa, Bayu Pranata, Bambang S Prayitno   +3 more
doaj   +1 more source

Ecology of Subseafloor Crustal Biofilms

Frontiers in Microbiology, 2019
The crustal subseafloor is the least explored and largest biome on Earth. Interrogating crustal life is difficult due to habitat inaccessibility, low-biomass and contamination challenges. Subseafloor observatories have facilitated the study of planktonic
Gustavo A. Ramírez, Arkadiy I. Garber, Aurélien Lecoeuvre, Aurélien Lecoeuvre, Timothy D’Angelo, C. Geoffrey Wheat, Beth N. Orcutt   +6 more
doaj   +1 more source

Preserved and modified arc crust beneath the Kohistan-Ladakh arc in the western Himalaya-Karakoram region: evidence from ambient noise and earthquake data

Frontiers in Earth Science, 2023
This study uses ambient noise and earthquake waveform data recorded over ∼25 broadband seismic networks in the Himalayas, Tibet, and the Pamir-Hindu Kush to compute a 3-D shear wave velocity (Vs) model of the crust beneath the Kohistan and Ladakh arcs ...
Vivek Kumar
doaj   +1 more source