Results 171 to 180 of about 7,697 (210)
Some of the next articles are maybe not open access.
Paleontological Research, 2021
The Qom Formation deposits, located at 12 km southeast of Salafchegan (N: 34° 21′ 26″ and E: 50° 32′ 14″), have a thickness of 110 m. The formation includes thin, and medium-to-thick bedded limestone, as well as shale, overlying the Lower Red Formation (early Oligocene) above an erosional unconformity.
Amrollah Safari +3 more
openaire +1 more source
The Qom Formation deposits, located at 12 km southeast of Salafchegan (N: 34° 21′ 26″ and E: 50° 32′ 14″), have a thickness of 110 m. The formation includes thin, and medium-to-thick bedded limestone, as well as shale, overlying the Lower Red Formation (early Oligocene) above an erosional unconformity.
Amrollah Safari +3 more
openaire +1 more source
Environmental Earth Sciences, 2017
To estimate uniaxial compressive strength of some sedimentary rock types from a set of index test results, selected soft computing methods were employed. Consequent comparative performances of these methods were also evaluated. Some selected sedimentary rock types (i.e., grainstone, wackestone–mudstone, boundstone, gypsum and silty marl) collected from
Seyed Hossein Jalali +2 more
openaire +1 more source
To estimate uniaxial compressive strength of some sedimentary rock types from a set of index test results, selected soft computing methods were employed. Consequent comparative performances of these methods were also evaluated. Some selected sedimentary rock types (i.e., grainstone, wackestone–mudstone, boundstone, gypsum and silty marl) collected from
Seyed Hossein Jalali +2 more
openaire +1 more source
Геология и геофизика, 2019
Abstract This research attempted to reconstruct the sedimentary environment and depositional sequences of the Qom Formation in Central Iran, using biofacies and taphofacies analyses. The Qom Formation in the Andabad area (3°48′12.6″ N, 47°59′28″ E) is 220 m in thickness. The thickness of the Qom Formation in the Nowbaran area (35°05′22.5″
M. Mahyad +3 more
openaire +2 more sources
Abstract This research attempted to reconstruct the sedimentary environment and depositional sequences of the Qom Formation in Central Iran, using biofacies and taphofacies analyses. The Qom Formation in the Andabad area (3°48′12.6″ N, 47°59′28″ E) is 220 m in thickness. The thickness of the Qom Formation in the Nowbaran area (35°05′22.5″
M. Mahyad +3 more
openaire +2 more sources
Carbonates and Evaporites, 2011
Qom Formation (Oligo-Miocene marine deposits, Central Iran) in the South of Kashan, was studied in order to determine its microfacies and depositional environment. Thirteen microfacies (MF A–M) were distinguished based on petrography, sedimentological features, components distribution and present fauna.
Ebrahim Mohammadi +4 more
openaire +1 more source
Qom Formation (Oligo-Miocene marine deposits, Central Iran) in the South of Kashan, was studied in order to determine its microfacies and depositional environment. Thirteen microfacies (MF A–M) were distinguished based on petrography, sedimentological features, components distribution and present fauna.
Ebrahim Mohammadi +4 more
openaire +1 more source
The Early Miocene Qom Formation depositional setting; Northwest of Central Iran Basin
2021An outcrop of the Qom Formation (Fm.) is considered to determine the depositional setting model in the northwest of Central Iran. Field observations show that the Qom Fm. is composed of thin to thick-beds limestone along with alternation of green marl and argillaceous limestone.
openaire +1 more source
Historical Biology, 2012
In the Central Iran Basin, the mixed carbonate–siliciclastic deposits of the C member of the Qom Formation were deposited on a carbonate platform which is dominated by rhodalgal associations occurring in tropical–subtropical environment. The biogenic rhodalgal association is dominated by bryozoa, coralline red algae, bivalves and echinoids together ...
Mona Seddighi +3 more
openaire +1 more source
In the Central Iran Basin, the mixed carbonate–siliciclastic deposits of the C member of the Qom Formation were deposited on a carbonate platform which is dominated by rhodalgal associations occurring in tropical–subtropical environment. The biogenic rhodalgal association is dominated by bryozoa, coralline red algae, bivalves and echinoids together ...
Mona Seddighi +3 more
openaire +1 more source
Journal of the Geological Society of India
Abstract The Qom Formation is deposited along more than 1800 km of the NE margin of the Tethyan Seaway in the Oligocene-Early Miocene during the final sea transgression on the Iranian Plate. We present (foraminiferal-based) biostratigraphic data from three exposed sections near the northwestern Jazmurian Lake, as the southeasternmost ...
Ebrahim Mohammadi, Hamed Ameri
openaire +1 more source
Abstract The Qom Formation is deposited along more than 1800 km of the NE margin of the Tethyan Seaway in the Oligocene-Early Miocene during the final sea transgression on the Iranian Plate. We present (foraminiferal-based) biostratigraphic data from three exposed sections near the northwestern Jazmurian Lake, as the southeasternmost ...
Ebrahim Mohammadi, Hamed Ameri
openaire +1 more source
An early Rupelian origin of Titanoderma pustulatum recorded in the Qom Formation, Iran
2019The Rupelian Uromieh section of the Qom Formation consists of Nummulites-bearing limestones that overlay thick polymictic conglomerates and are overlaid by marlstones rich in planktonic foraminifera. The section was analyzed with the aim to provide a first description of its still unknown coralline algal assemblages, and for depicting its benthic ...
Basso, D +3 more
openaire +1 more source
Zeitschrift der Deutschen Gesellschaft für Geowissenschaften, 2020
Amrollah Safari +3 more
openaire +1 more source
Amrollah Safari +3 more
openaire +1 more source