Geomorphologic assessment of relative tectonic activity in the Maharlou Lake Basin, Zagros Mountains of Iran

2011 ◽  
Vol 47 (1) ◽  
pp. 30-40 ◽  
Author(s):  
Ali Faghih ◽  
Babak Samani ◽  
Timothy Kusky ◽  
Saman Khabazi ◽  
Reihaneh Roshanak
Keyword(s):  
Tectonic Activity ◽  
Lake Basin ◽  
Zagros Mountains

scholarly journals The Sedimentary Facies and Evolution Characteristics of the Middle and Deep Strata in the Nanpu No. 3 Structural Area

2021 ◽  
Vol 9 ◽  
Author(s):  
Hui Zhang ◽  
Zhiqin Lan ◽  
Xiaoyan Li ◽  
Xinglong Huang
Keyword(s):  
Shallow Lake ◽  
Oil And Gas ◽  
Sedimentary Facies ◽  
Seismic Profile ◽  
Tectonic Activity ◽  
Lake Basin ◽  
Braided River ◽  
Break Zone ◽  
Sedimentary System ◽  
Deep Strata

In this study, due to the inconsistencies in the understanding of the sedimentary types in the second section of the Dongying Formation (Ed2) and the third section of the Shahejie Formation (Es3) in the middle and deep strata of Nanpu No. 3 structural area, the depositional characteristics of the deep braided river delta, fan delta, deep-water slump turbidite fan, and coastal and shallow lake in the Nanpu No. 3 structural area were examined in-depth. The investigations were begun based on the descriptions and observations of core samples obtained from eight cored wells in the study area, in combination with seismic, well logging, and rock ore data. The results revealed that the sources of the material in the study area originated from the Shaleitian salient in the southwest direction. It was determined that the fan deltas and the shallow lake sedimentary system had developed during the SQ1 sequence and SQ2 sequence periods. The braided river deltas and the shallow lake and turbidite sedimentary system with multi-stage superposition had developed during the SQ3 to SQ7 sequence periods, and their distribution range had been controlled by the structural background of the gentle slope zone of the lake basin. On that basis, a sequence deposition filling model controlled by a slope break zone in the middle and deep strata of the Nanpu No. 3 structural area was established in this study starting from the typical seismic profile, in which such factors as the tectonic activity characteristics, lake basin boundary shape, water depths, and so on, were comprehensively considered. The goal of this research investigation was to provide beneficial information for oil and gas explorations in similar areas.

Active strike-slip faulting in the Zagros Mountains: Geological and geomorphological evidence of the pull-apart Zaribar Lake basin, Zagros, NW Iran

2019 ◽  
Vol 174 ◽  
pp. 332-345 ◽  
Author(s):  
Bahman Rahimzadeh ◽  
Shahram Bahrami ◽  
Mohammad Mohajjel ◽  
Hossein Mahmoudi ◽  
Farzad Haj-Azizi
Keyword(s):  
Strike Slip ◽  
Lake Basin ◽  
Zagros Mountains ◽  
Nw Iran

Control of Tectonic on Sedimentation in A’nan Depression, Erlian Basin

2013 ◽  
Vol 295-298 ◽  
pp. 2711-2714
Author(s):  
Zi Nan Li ◽  
Lu Lu Zhou ◽  
Jun Gang Liu
Keyword(s):  
Source Area ◽  
Sedimentary Facies ◽  
Tectonic Activity ◽  
Lake Basin ◽  
Growth Fault ◽  
Secondary Sources ◽  
Low Area ◽  
Stable Source ◽  
And Control ◽  
Two Sides

A’nan depression is faulted lake basin and control of its tectonic activity on the type characteristic of sedimentary facies, the sediment conduit and the capacity distribution of sandbodies can be summarized mainly as follows: (1) the area of sediment accumulate is in the thrown side of growth fault, with the high accommodation, meanwhile, the changes of sedimentary facies are caused by the differences of accommodation in the two sides of fault in the condition of stable source supply; (2) the accommodation zones between faults have low area, which can be a conduit from source area to depression area; (3) the distribution of sedimentary facies is controlled by ancient uplift that can block or change the direction of sediment transport. In other ways, the ancient uplift is as secondary sources during lower stand.

scholarly journals Vegetation history of the Maharlou Lake basin (SW Iran) with special reference to the Achaemenid period (550–330 bc)

2020 ◽  
Author(s):  
Sara Saeidi Ghavi Andam ◽  
Morteza Djamali ◽  
Oliver Nelle ◽  
Abdolmajid Naderi Beni ◽  
Mohamad Haghighifard ◽  
...  
Keyword(s):  
Late Antiquity ◽  
Vegetation Change ◽  
Vegetation History ◽  
Vegetation Type ◽  
Anthropogenic Activities ◽  
Agricultural Practices ◽  
Punica Granatum ◽  
Lake Basin ◽  
Fars Province ◽  
Zagros Mountains

AbstractThis study presents the results of a palynological investigation on a sediment core from the seasonal and saline Lake Maharlou in the Zagros Mountains in southwest Iran. We emphasised studying the role of man in modifying the vegetation of the area and the dominant agricultural practices during the Imperial Persia period (2,500–1,299 cal bp; 550 bc-ad 651), particularly the Achaemenid Empire (2,500–2,280 cal bp; 550–330 bc). Scattered pistachio-almond scrub combined with Quercus brantii was the main vegetation type of the basin during the period studied. The present study depicts a significant increase in agriculture, suggesting urban development during the Late Antiquity and early Islamic Iranian dynasties. The inferred chronology of arboricultural activities is compatible with historical evidence showing that Fars Province witnessed economic and agricultural flourishing during these periods. The presence of the ‘Persian gardens’ is supported by the co-increase of cypress tree pollen frequencies with pollen of other cultivated trees, especially Platanus; both trees were cultivated for their shade and symbolic values. This study also provides pollen evidence of Punica granatum during the Achaemenid period and Phoenix dactylifera cultivation during the early post-Sasanian era. The variations in indicator pollen ratios among Poaceae, Artemisia, and Amaranthaceae appear compatible with the palaeohydrology of the basin and show periods of aridity followed by higher moisture availability. We suggest that anthropogenic activities played the leading role in vegetation change in the Maharlou Lake basin enhanced by climatic changes during the last ~4,000 years.

Molecular phylogeny and taxonomic evaluation of the genus Asaccus Dixon and Anderson, 1973 (Reptilia: Phyllodactylidae) in Iran

2020 ◽  
pp. 207-214
Author(s):  
Akbar Fattahi
Keyword(s):  
Molecular Phylogeny ◽  
Nuclear Gene ◽  
Genetic Distances ◽  
Genetic Lineage ◽  
New Taxon ◽  
Zagros Mountains ◽  
Relict Species ◽  
Taxonomical Revision ◽  
Two Populations ◽  
Taxonomic Evaluation

The Iranian species of the phyllodactylid geckos of the genus Asaccus are found only in the valleys of the Zagros Mountains, a region which represents an important area of endemism in western Iran. Recently, many relict species have been described from the central and southern parts of the Zagros Mountains, which were previously known as A. elisae. The recent descriptions of species within this complex suggest that diversity within the genus may be higher than expected and that its taxonomy and systematics should be revised. In the present study, phylogenetic relationships within the genus Asaccus were evaluated using two mitochondrial and one nuclear gene. Genetically, the genus shows high levels of variability. The molecular phylogeny of the genus suggests the presence of three main clades along the Zagros Mountains with the southern population (from the Hormozgan province) and one clade (A. sp8 and A. sp9) being sister taxon to A. montanus from UAE. The remaining samples are separated into two reciprocally monophyletic groups: the northern (Kurdistan, Kermanshah and Ilam provinces) and the central (Lorestan, Khuzestan, Kohgilouye-Bouyer Ahmad and Fars provinces) Zagros groups. The results of the present study suggest that populations attributed to A. elisae in Iran correspond to distinct lineages with high genetic distances. In brief, our results suggest that the genus needs a major taxonomical revision The Arabian origin of the genus has not been confirmed, because two populations from Zagros were located within the A. montanus, A. gallagheri and A. platyrhynchus clade. Further morphological analyses are needed to systematically define each genetic lineage as a new taxon.

PROBLEMS CAUSED BY SMALL PIG FARM ODOR AROUND THE WESTERN SONGKHLA LAKE BASIN

2017 ◽  
Vol 2 (1) ◽  
pp. 1-13
Author(s):  
Papontee Teeraphan
Keyword(s):  
Air Pollution ◽  
Lake Basin ◽  
Urgent Problem ◽  
The Public ◽  
Pig Farms ◽  
Pig Farm ◽  
The Government ◽  
The Moment ◽  
Source Of Information ◽  
Proper Solutions

Pollution is currently a significant issue arising awareness throughout the world. In Thailand, pollution can often be seen in any part of the country. Air pollution is pointed as an urgent problem. This pollution has not damaged only to human health and lives, it has destroyed environment, and possibly leading to violence. In Phattalung, air pollution is affecting to the residents’ lives. Especially, when the residents who are mostly agriculturists have not managed the waste resulted from the farm. In Phattalung, at the moment, there are many pig farms, big and small. Some of them are only for consuming for a family, some, however, are being consumed for the business which pigs will be later purchased by big business companies. Therefore, concerning pollution, the researcher and the fund giver were keen to focus on the points of the air pollution of the small pig farms. This is because it has been said that those farms have not been aware on the pollution issue caused by the farms. Farm odor is very interesting which can probably lead to following problems. The researcher also hopes that this research can be used as a source of information by the government offices in order to be made even as a policy or a proper legal measurement. As the results, the study shows that, first, more than half of the samples had smelled the farm odor located nearby their communities, though it had not caused many offenses. Second, the majority had decided not to act or response in order to solve the odor problem, but some of them had informed the officers. The proper solutions in reducing offenses caused by pig farm odor were negotiation and mediation. Last, the majority does not perceive about the process under the Public Health Act B.E. 2535.

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