نتایج جستجو برای: bajocian

تعداد نتایج: 104  

Journal: :Petroleum Geoscience 2021

The Sea of Hebrides Basin and Minch are late Paleozoic–Mesozoic rift basins located to the NW Scottish mainland. were target small-scale petroleum exploration from 1960s early 1990s, with a total three wells drilled within two between 1989 1991. Although no commercially viable discoveries made, numerous shows identified both basins, including gas show Upper Glen 1 well in Lower Jurassic limesto...

Journal: :journal of tethys 0

the badamu formation (upper toarcian-middle bajocian) mainly consists of limestone and shale and has is cropped out in east of iran. the badamu formation conformably overlays shemshak formation and is underlaid sharply by hojedk formation in kerman area and is underlaid gradually by baghamshah formation in tabas and southern khorasan areas. the aim of this work is petrographical study of rocks ...

The Hojdek Formation in the Kale-shur area consists of alternation of fine quartz arenitic-arkosic sandstones with dark gray to green shales and coal seams. This formation includes relatively well-preserved plant macrofossils which are studied here for the first time. 15 species of 9 genera belong to different orders such as Equisetales, Filicales, Sycadales and Pinales have been determined in ...

N. Naimi Ghassabiyan

The study area is situated in the Middle part of the Tabas Block. It contains outcrops of rocks that formed along longitudinal faults in Early Cimmerian orogenic phase. The basin subsided along these faults from the Late Triassic to Early Cretaceous, which include two sedimentary cycles. A sedimentary cycle, related to Upper Triassic to Bajocian is known as Shemshak group. Another sedimentary c...

ژورنال: علوم زمین 2018
Fatemeh Vaez-Javadi Nasrollah Abbassi

Jurassic deposits a section in south of Zanjan contain various taxa of macro and microfloras. Six plant macrofossil species belonging to five genera of various orders such as Equisetales, Cycadales, Bennettitales, and Pinales (Coniferales) are identified. This section contains seventeen species of palynomorphs in which six spore species allocated to six genera, eight pollen species allocated to...

Journal: :Journal of Paleontology 2023

Abstract The Jurassic rocks of Gebel Maghara, northern Sinai, Egypt, contain a well-preserved and highly diverse macrobenthic fauna, dominated by bivalves. This particularly bivalves gastropods, have received little attention in the last 100 years. In an attempt to provide sound database on marine bivalve diversity Egypt during period, first faunal group, protobranch bivalves, is reviewed detai...

Journal: :Frontiers in Earth Science 2023

Integrated organic petrographic and geochemical analyses were made on organic-rich marine carbonate mixed clastic-carbonate rocks of Middle–Late Jurassic Early Cretaceous age from the Shushan Basin, Egypt to evaluate their hydrocarbon potential. Analyses allowed identification depositional settings, paleoclimate, three third order genetic stratigraphic sequences (SQ) with deposits assigned high...

Journal: :geopersia 2012
mohsen ehteshami-moinabadi ali yassaghi abdolhossein amini

this paper presents evidence on mesozoic inversion of basin bounding faults within the taleqan-gajereh-lar paleograben (tglp) in central alborz range. for this purpose, well documented stratigraphy data across the tglp together with the new acquired structural data on the geometry and kinematics of the paleograben basin bounding faults are utilized. the tglp has evolved through the early and mi...

Journal: :journal of sciences islamic republic of iran 0
n. naimi ghassabiyan

the study area is situated in the middle part of the tabas block. it contains outcrops of rocks that formed along longitudinal faults in early cimmerian orogenic phase. the basin subsided along these faults from the late triassic to early cretaceous, which include two sedimentary cycles. a sedimentary cycle, related to upper triassic to bajocian is known as shemshak group. another sedimentary c...

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