Results 21 to 30 of about 654 (163)

Biostratigraphy of the upper part of Aitamir Formation based on calcareours nannofossils, Cherli section (NW Kopet-Dagh) [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2017
Introduction The Kopet-Dagh sedimentary basin is located in north-east Iran, southern Turkmenistan and Afghanistan and is composed of Mesozoic and Cenozoic sedimentary successions. Fifteen formations have been introduced in the Kopet-Dagh Basin.
Saeideh Senemari   +3 more
doaj   +1 more source

Recognition of Oil Traps in the Kopet-Dagh Basin (Northeastern Iran) Using Fusion of Seismic Attributes, Petrophysical Logs and Geological Data [PDF]

open access: yesJournal of Petroleum Science and Technology, 2022
Integrated analysis of oil traps, especially those related to facies changes, is far more complicated than reservoirs related to structural traps. The most useful way to identify these complex subsurface structures directly related to facies change is to
Milad Moradi, Ali Kadkhodaie
doaj   +1 more source

Geochemical and Isotopic Evolution of Late Oligocene Magmatism in Quchan, NE Iran

open access: yesGeochemistry, Geophysics, Geosystems, Volume 22, Issue 11, November 2021., 2021
Abstract Magmatic activity that accompanied the collision between Arabia and Eurasia at ∼27 Ma, provides unique opportunities for understanding the triggers and magma reservoirs for collisional magmatism and its different styles in magmatic fronts and back‐arcs.
H. S. Moghadam   +6 more
wiley   +1 more source

Ecological and geological processes impacting speciation modes drive the formation of wide‐range disjunctions within tribe Putorieae (Rubiaceae)

open access: yesJournal of Systematics and Evolution, Volume 59, Issue 5, Page 915-934, September 2021., 2021
Wide‐range geographically discontinuous distributions have long intrigued scientists. We explore the role of ecology, geology, and dispersal in the formation of these large‐scale disjunctions, using the angiosperm tribe Putorieae (Rubiaceae) as a case study. From DNA sequences of nuclear ITS and six plastid markers, we inferred a phylogeny, obtained an
Mario Rincón‐Barrado   +7 more
wiley   +1 more source

Slip‐Rate on the Main Köpetdag (Kopeh Dagh) Strike‐Slip Fault, Turkmenistan, and the Active Tectonics of the South Caspian

open access: yesTectonics, Volume 40, Issue 8, August 2021., 2021
Abstract We provide the first measurement of strike‐slip and shortening rates across the 200‐km‐long right‐lateral strike‐slip Main Köpetdag Fault (MKDF) in Turkmenistan. Strike‐slip and shortening components are accommodated on parallel structures separated by ∼10 km.
R. T. Walker   +9 more
wiley   +1 more source

Biostratigraphy of the Tirgan Formation in the Kopet-Dagh basin:Stratigraphic sections of the Tirgan village and Amirabad [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2019
The Lower Cretaceous successions of the NE Iran in the sedimentary Kopet-Dagh basin are result from transgression of the Berriasian-Barremian marine, which are deposited after first erosional cycle (Late Jurassic-Early Cretaceous).
Masoumeh Gheiasvand   +4 more
doaj   +1 more source

Multistage dolomitization of upper jurassic mozduran formation, Kopet-Dagh Basin, n.e. Iran

open access: yesCarbonates and Evaporites, 2009
This paper is a study of the origin and diagenetic history of the Upper Jurassic dolomites of the Mozduran Formation, from north eastern Iran, in the Kopet-Dagh Basin. Petrographic and geochemical studies indicate that the Mozduran dolomites were subjected to a complex diagenetic history, resulting five different dolomite—rock textures. Dolomite type 1
Z. Kadivar, M. Vahidinia, A. Mousavinia
  +4 more sources

Regional Factors Controlling the Type of Pliocene Deposits in the Southeastern Caspian Basin, NE Iran: Implication for Tectono-stratigraphic Analysis [PDF]

open access: yesJournal of Petroleum Science and Technology, 2020
Providing information about the role of the major elements controlling the type of Pliocene deposits in the south­eastern part of the Caspian Basin by assessing regional and global parameters is very important to demonstrate the relationship between the ...
Behzad Soltani   +4 more
doaj   +1 more source

Biostratigraphy of the Cretaceous deposits based on ammonites in the southwest of Qayen area (Qumenjan section) [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2021
Ammonite biostratigraphy could be used in age determination and correlation of rock units in different sedimentary basins. Qumenjan section with 125 meters thickness is mainly formed by grey sandy limestone with grey and thick-bedded limestone ...
Seyed Naser Raisossadat   +3 more
doaj   +1 more source

3-D lithospheric structure and regional/residual Bouguer anomalies in the Arabia-Eurasia collision (Iran) [PDF]

open access: yes, 2013
The aim of this work is to propose a first-order estimate of the crustal and lithospheric mantle geometry of the Arabia-Eurasia collision zone and to separate the measured Bouguer anomaly into its regional and local components.
Fernandez, Manel   +4 more
core   +2 more sources

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