scholarly journals Modeling of wind gap formation and development of sedimentary basins during fold growth: application to the Zagros Fold Belt, Iran

2016 ◽  
Vol 41 (11) ◽  
pp. 1521-1535 ◽  
Author(s):  
Marine Collignon ◽  
Philippe Yamato ◽  
Sébastien Castelltort ◽  
Boris J. P. Kaus
Keyword(s):  
Sedimentary Basins ◽  
Fold Belt ◽  
Gap Formation

Tectonic setting and syndepositional deformation of molasse and other nonmarine-paralic sedimentary basins

1978 ◽  
Vol 15 (10) ◽  
pp. 1613-1632 ◽  
Author(s):  
Andrew D. Miall
Keyword(s):  
Tectonic Setting ◽  
Foreland Basin ◽  
Source Area ◽  
Sedimentary Basins ◽  
Sedimentary Facies ◽  
Normal Faults ◽  
Fold Belt ◽  
Active Deformation ◽  
Shallow Marine ◽  
Differential Movement

Molasse is a distinctive sedimentary facies consisting of alluvial and shallow marine deposits derived from source areas undergoing rapid uplift and erosion. The characteristic setting of molasse is within or adjacent to fold belts, and most molasse basins can be classified as foreland basin (external) or intermontane (internal) in type. Thick alluvial and shallow marine sequences in cratonic settings (e.g., taphrogenic troughs) have been classified as molasse by some workers, but this is not generally accepted.Most molasse is synorogenic, and the interdependence of sedimentation and tectonism results in structural and stratigraphic complexity. Intermontane basins generally are tensional in origin and are bounded by high angle (commonly normal) faults. Facies distributions adjacent to each fault depend on relative rates of differential movement, erosion, and sedimentation; accelerated source area uplift causes segmentation and progradation of alluvial fans and generates coarsening-upward sedimentary cycles. Complications are introduced if tectonism occurs in discrete pulses and if basins enlarge themselves along systems of stepped faults.Basins of compressional origin, such as those in a foreland setting, show a greater variety of internal complexity. Facies belts and trends of maximum thickness move progressively out from the core of the fold belt in response to a migration of the zone of active deformation. Conversely, broad structural warps may develop in response to a locally increased sedimentary load, such as a major delta. Folds or thrust faults growing within the basin cause local thinning or unconformable relationships, and may breach the surface so as to isolate parts of the alluvial plain as a synorogenic intermontane basin. Uplift of the fold belt may be discontinuous, causing the generation of stacked sedimentary megacycles. Basin margins commonly are characterized by intraformational angular unconformities and syndepositional folds.Rates of alluvial sedimentation and tectonic movement measured in modern environments are one to two orders of magnitude higher than rates deduced from ancient nonmarine sequences. This lends support to the idea that much sedimentation may be very episodic in nature, but it could also imply that alluvial sequences are deposited much more rapidly than current interpretations of the ancient record would imply, based as they are on relatively crude dating techniques. Only in some wrench-fault basins do calculated sedimentation rates compare with those measured in modern environments.

A general inverse method for modelling extensional sedimentary basins

2000 ◽  
Vol 12 (3-4) ◽  
pp. 219-226 ◽  
Author(s):  
P. Bellingham ◽  
N. White
Keyword(s):  
Inverse Method ◽  
Sedimentary Basins

Unconventional Shale Gas Prospects in Indian Sedimentary Basins

2012 ◽  
Vol 3 (6) ◽  
pp. 35-38
Author(s):  
Annapurna Boruah ◽  
Keyword(s):  
Shale Gas ◽  
Sedimentary Basins

The concept of facial modelling of sedimentary basins

2017 ◽  
pp. 52-57 ◽  
Author(s):  
M.V. Lebedev ◽  
Keyword(s):  
Sedimentary Basins

Sedimentary Basins of the Republic of Yemen : Their Structural Evolution and Geological Characteristics

1996 ◽  
Vol 51 (6) ◽  
pp. 763-775 ◽  
Author(s):  
Z. R. Beydoun ◽  
M. L. As-Saruri ◽  
R. S. Baraba
Keyword(s):  
Structural Evolution ◽  
Sedimentary Basins ◽  
Geological Characteristics ◽  
The Republic

GENESIS OF NEOPROTEROZOIC GRANITOID MAGMATISM IN THE EASTERN ARAÇUAÍ FOLD BELT, EASTERN BRAZIL: FIELD, GEOCHEMICAL AND SR ND ISOTOPIC EVIDENCE.

2000 ◽  
Vol 30 (1) ◽  
pp. 135-139 ◽  
Author(s):  
JOIL JOSÉ CELINO ◽  
NILSON FRANCISQUINI BOTELHO ◽  
MÁRCIO MARTINS PIMENTEL
Keyword(s):  
Fold Belt ◽  
Granitoid Magmatism ◽  
Isotopic Evidence ◽  
Eastern Brazil

Structure and Hydrocarbon Prospectivity of the Lengguru Fold Belt, Irian Jaya

2018 ◽  
Author(s):  
Edy Sutriyono
Keyword(s):  
Fold Belt ◽  
Irian Jaya
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