Results 181 to 190 of about 12,671 (217)

Evolution of volcanism in graben and horst structures along the Cenozoic Cameroon Line (Africa): implications for tectonic evolution and mantle source composition

Mineralogy and Petrology, 2008
Tombel graben and Mounts Bambouto are two volcanic fields of the typical system of alternating graben and horst structure of the Cameroon Volcanic Line. Tombel graben is a young volcanic field, whereas Mounts Bambouto horst is an old stratovolcano with calderas.
G. Nkouathio, D., Kagou Dongmo, A., Bardintzeff, J.M, Wandji, P., Bellon, H., Pouclet, André   +5 more
openaire   +3 more sources

Gravity and magnetic survey of the Oaxaca city region: Cenozoic horst-and-graben structure superimposed on the Oaxaca–Juarez terrane boundary, southern Mexico

Journal of South American Earth Sciences, 2010
Abstract A geophysical survey of the Oaxaca Fault along the north-trending Etla and Zaachila valleys area, southern Mexico, shows a series of NNW–SSE Bouguer and magnetic anomalies with steeper gradients towards the east. The Oaxaca Fault represents Tertiary extensional reactivation of the Juarez shear zone that constitutes the boundary between the ...
J.O. Campos-Enríquez, S.I. Belmonte-Jiménez, J.D. Keppie, F. Ortega-Gutiérrez, J.A. Arzate, J. Martínez-Silva, R.G. Martínez-Serrano   +6 more
openaire   +1 more source

Structure and sedimentation of Permo-Triassic and Triassic rocks exposed in small-scale horsts and grabens of pre-Cretaceous age: Dead Sea margin, Jordan

Journal of African Earth Sciences (and the Middle East), 1993
Abstract Small-scale horsts and grabens, formed prior to the deposition of the Lower Cretaceous Kurnub Sandstone, are described for the first time from remote exposures near the eastern shore of the Dead Sea, Jordan. The grabens preserve a sequence of Permo-Triassic and Triassic rocks (Umm Irna and Ma'in Formations), flanked by horsts of Cambrian ...
J.H. Powell, B Khalil Mohamed
openaire   +1 more source

Structural evolution of horst and half-graben structures proximal to a transtensional fault system determined using 3D seismic data from the Shipwreck Trough, offshore Otway Basin, Australia

Marine and Petroleum Geology, 2018
Abstract Using a three-dimensional (3D) seismic reflection dataset from the Shipwreck Trough, offshore Otway Basin, southern Australia, we aim to characterise and understand the structural evolution of the Shipwreck Fault Zone (SFZ) and associated extensional structures.
Robson, A., Holford, S., King, R., Kulikowski, D.   +3 more
openaire   +2 more sources

Basin and Range Structure: A System of Horsts and Grabens Produced by Deep-Seated Extension

Geological Society of America Bulletin, 1971
Basin and Range structure can be interpreted as a system of horsts and grabens produced by the fragmentation of a crustal slab above a plastically extending substratum. According to this view, the extension of the substratum causes the basal part of the slab to be pulled apart along narrow, systematically spaced zones which in turn cause the ...
openaire   +1 more source

Tectonic History and Influence on Sedimentation of Rhomb Horsts and Grabens Associated with Amarillo Uplift, Texas Panhandle: ABSTRACT

AAPG Bulletin, 1983
The Amarillo uplift consists of an en echelon series of fault blocks separating the Anadarko basin from the Palo Duro basin. The uplift is part of a northwest-southeast zone of basement weakness that extends from the Wichita Mountains in Oklahoma to southeastern Colorado. Initial faulting, related to the opening of the southern Oklahoma aulacogen, took
openaire   +1 more source

The identification of Pre-Sinian graben-horst structures in the southern Sichuan and northern Guizhou region and their petroleum geological significance

Using an  Magnetotelluric profile from the southern margin of the Sichuan Basin, we conducted an electrical structure study of the southern Sichuan and northern Guizhou region that the profile traverses, employing magnetotelluric sounding processing and inversion. A wealth of oil and gas exploration data within the Sichuan Basin indicates that
Yan Peng, Hui Fang, Hongda Liang, Xiaobo Zhang, Yaoyang Zhang, Dashuang He, Qinyin Lü, Gang Wang, Meixing He, Hanqing Qiao   +9 more
openaire   +1 more source

Satpura Horst and Narmada–Tapi Grabens

2017
K.S. Valdiya, Jaishri Sanwal
openaire   +1 more source

THE SILER CITY HORST AND GRABEN NETWORK IN THE CAROLINA TERRANE, CHATHAM COUNTY, NORTH CAROLINA

Geological Society of America Abstracts with Programs, 2018
Philip J. Bradley, Brandon T. Peach, Heather D. Hanna   +2 more
openaire   +1 more source

Gravity data inversion for the basement relief delineation through global optimization: a case study from the Aegean Graben System, western Anatolia, Turkey

Geophysical Journal International, 2020
Yunus Levent Ekinci, Çağlayan Balkaya, Gökhan Göktürkler   +2 more
exaly