Geological Society Special Publication

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The Jurassic Ligurian Tethys, a fossil ultraslow‐spreading ocean: the mantle perspective
Geological Society Special Publication - Tập 293 Số 1 - Trang 11-34 - 2008
Giovanni B. Piccardo
Abstract Alpine–Apennine ophiolites derive from the Jurassic Ligurian Tethys oceanic basin formed by lithosphere extension and failure in the pre-Triassic Europe–Adria system. The basin was floored by mantle peridotites and was characterized by along-axis alternation of avolcanic and volcanic segments. Lithosphere extension and thinning cause...... hiện toàn bộ
Tectonic and stratigraphic evolution of Zagros and Makran during the Mesozoic-Cenozoic: introduction
Geological Society Special Publication - Tập 330 Số 1 - Trang 1-4 - 2010
Pascale Leturmy, Cécile Robin
Deformation processes in unconsolidated sands
Geological Society Special Publication - Tập 29 Số 1 - Trang 11-24 - 1987
Geraint Owen
Summary Deformation in unconsolidated sands requires the action of a deformation mechanism to reduce sediment strength and a driving force to induce deformation. Deformation mechanisms include liquefaction and fluidization and are reflected in the style of deformation and grain orientation fabrics. They are initiated by a trigger, including groundwater mo...... hiện toàn bộ
The liquification and remobilization of sandy sediments
Geological Society Special Publication - Tập 94 Số 1 - Trang 63-76 - 1995
Robert J. Nichols
Abstract A number of large, unusually shaped sandbodies have been interpreted from three-dimensional seismic data of hydrocarbon-bearing Tertiary submarine fan deposits of the North Sea. The unusual sandbody shape is considered to have resulted from post-depositional liquification of turbidite deposits. An understanding of liquification processes may ther...... hiện toàn bộ
The metamorphism of the Tibetan Series from the Manang area, Marsyandi Valley, Central Nepal
Geological Society Special Publication - Tập 74 Số 1 - Trang 357-374 - 1993
Christian Schneider, L. Masch
Abstract In the Manang area a distinctive metamorphic zonation with grade increasing downward to deeper structural levels of the Tibetan Series can be observed. The first appearance of prograde biotite/phlogopite introducing the metamorphic zonation can be located in the Devonian Tilicho Pass Formation. The Silurian Dark Band Formation contai...... hiện toàn bộ
Late Permian anoxia in central East Greenland
Geological Society Special Publication - Tập 58 Số 1 - Trang 275-290 - 1991
Stefan Piasecki, Lars Stemmerik
Abstract The Upper Permian Foldvik Creek Group of the East Greenland Basin provides excellent possibilities for studying regional anoxia, because the basinal, anoxic facies of the Ravnefjeld Formation are well exposed throughout this 400 km long and more than 80 km wide basin. The shales of the Ravnefjeld Formation are dominated...... hiện toàn bộ
Seismic stratigraphy of the Gulf of Cádiz continental shelf: a model for Late Quaternary very high-resolution sequence stratigraphy and response to sea-level fall
Geological Society Special Publication - Tập 172 Số 1 - Trang 329-362 - 2000
F. Javier Hernández‐Molina, Luı́s Somoza, F.J. Lobo
Abstract Single-channel, very high-resolution seismic profiles allow detailed study of the Late Quaternary stratigraphic architecture of the Gulf of Cádiz continental margin, Southern Spain. The Late Quaternary stratigraphy of this area comprises fourth-order Type 1 composite depositional sequences, generated by asymmetric relative sea-level ...... hiện toàn bộ
Late Quaternary sedimentation and high-resolution sequence stratigraphy of the east Texas shelf
Geological Society Special Publication - Tập 117 Số 1 - Trang 95-124 - 1996
John B. Anderson, Kenneth C. Abdulah, Sabrina Sarzalejo, Fernando P. Siringan, Mark A. Thomas
Abstract An ongoing study utilizes outcrop-scale seismic data and lithofacies data from cores and platform borings collected from the east Texas continental shelf to test assumptions and models that relate sedimentary facies patterns and sequence stratigraphy. The current data base consists of nearly 15 000 km of high-resolution seismic data and lithologi...... hiện toàn bộ
Faulting mechanisms in high-porosity sandstones; New Red Sandstone, Arran, Scotland
Geological Society Special Publication - Tập 29 Số 1 - Trang 91-105 - 1987
John R. Underhill, Nigel Woodcock
Summary Faults in the ‘New Red’ aeolian sandstones of Arran are unusual, firstly for occurring as closely-spaced (less than 1 m) often conjugate sets affecting large volumes of rock, and secondly for forming upstanding fault zones with numerous anastomosing strands of granulated rock, each preserving a small increment of slip. Anisotropy, such as bedding ...... hiện toàn bộ
Stable isotope abundances in calcretes
Geological Society Special Publication - Tập 11 Số 1 - Trang 221-233 - 1983
A.S. Talma, F Netterberg
Summary About 300 published and unpublished measurements of carbon and oxygen stable isotope ratios of calcretes are compared in an attempt to define general trends. The δ 13 C values of the carbonates range from − 12 to + 4‰ PDB. On a global scale the main factor responsible for the average ...... hiện toàn bộ
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