Results 41 to 50 of about 1,109 (180)

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

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

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

Calcareous nannofossil biostratigraphy of Sarcheshmeh and Sanganeh formations in the west of Kopet-Dagh Basin, Sheikh Section [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2015
The Kopet-Dagh Basin is located in the north and north east of Iran, within the border triangle of Iran, Turkmenistan and Afghanistan. Sediments of Cretaceous age are well exposed in this basin.
Azam Mahanipour   +1 more
doaj   +1 more source

Paleoecology of the Maastrichtian and Danian sediment at North of Central Alborz, Iran, based on Planktonic foraminifera [PDF]

open access: yes, 2010
In order to study the fossil contents of the Ziarat-kola section for biostratigraphical purposes the 212 meters was sampled at Central Alborz. The sequence is mainly made up of monotonous grey- green to light grey marl.
Behnaz Balmaki
core   +2 more sources

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

Centros de riqueza y endemismo del megagénero Astragalus (Fabaceae) en Irán [PDF]

open access: yes, 2023
Iran is the main center of speciation and endemism of Astragalus (Fabaceae), the largest flowering plant genus in the Old World. The areas of endemism and major endemic hotspots of this genus are not well known, and detailed spatial evaluation ...
Khajoei Nasab, Farzaneh   +1 more
core   +2 more sources

Study of Sea level changes with Leckie method of the Abderaz Formation (Middle Turonian-Early Campanian) at type section based on foraminifera [PDF]

open access: yes, 2010
In this research the Abderaz Formation at its type section with an age of Turonian-early Campanian and a thickness of 300 m containing.light grey shale and marls was investigated.
Abbas Abbasi, Meysam Shafiee Ardestani
core   +2 more sources

Lithostratigraphy and study of planktonic foraminifera of the Abderaz Formation at type section, Kopet-Dagh basin, IRAN [PDF]

open access: yes, 2009
In order to study the fossil contents of the Abderaz Formation for biostratigraphical purposes the 300 meters thick section was sampled at type section.
Esmail Kohansal   +2 more
core   +2 more sources

Paleogeography and regional interpretation of facies in Tirgan Formation, west of Kopet-Dagh sedimentary basin, northeast of Iran [PDF]

open access: yesSustainable Earth Trends, 2021
In order to study the lithostratigraphy, biostratigraphy, microfacies, depositional setting and also to reconstruct the paleo-environmental conditions of the Tirgan Formation, three outcrop sections were selected in the western part of the Kopet-Daghh ...
Atefeh Chenarani   +2 more
doaj   +1 more source

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