نتایج جستجو برای: sedimentation zone

تعداد نتایج: 128284  

Journal: :journal of sciences islamic republic of iran 0

the permian-triassic boundary in the himalayas is reviewed and discussed in the light of palaeontologic and stratigraphic data collected during the past two and a half decades from kashmir, spiti and nepal. the deposition of the kuling shales and their equivalents in different parts of the himalayas was followed by shallowing and regression of the sea. sedimentation was interrupted at the top o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم 1392

سازند پابده در برش دره شهر شامل 260متر شیل، شیل آهکی، مارن و آهک می باشد. مطالعات انجام شده بر روی فرامینیفرهای پلانکتون منجر به شناسایی و ارائه تعداد 12 بیوزون شده است. این بیوزون ها عبارتند از: بیوزون شماره یک: parasubbotina pseudobulloides partial-range zone ، بیوزون شماره دو: subbotina triloculinoides partial-range zone، بیوزون شماره سه: morozovella angulata partial-range zone ، بیوزون شمار...

2006
Christopher W. Fuller Sean D. Willett Mark T. Brandon

Recent observations of an association between forearc basins and slip during subduction thrust earthquakes suggest a link between processes controlling upper plate structure and seismic coupling on the subduction-zone thrust fault. We present a mechanism for the formation of these basins where sedimentation occurs on landward-dipping segments of the subduction wedge, which itself is actively gr...

Journal: :British medical journal 1982
M Gapany-Gapanavicius M Molho M Tirosh

urine microscopy. Four months before admission her haemoglobin concentration had been 13-5 g/dl, erythrocyte sedimentation rate 28 mm in first hour, and serum creatinine concentration 84 ,tmol/l (0 9 mg/100 ml) and she had been normotensive. Ultrasonography carried out because of abdominal pain showed bilateral hydronephrosis. Intravenous urography showed obstruction on both sides at the same l...

The Permian-Triassic boundary in the Himalayas is reviewed and discussed in the light of palaeontologic and stratigraphic data collected during the past two and a half decades from Kashmir, Spiti and Nepal. The deposition of the Kuling Shales and their equivalents in different parts of the Himalayas was followed by shallowing and regression of the sea. Sedimentation was interrupted at the t...

2008
Gaurav Bhatnagar Walter G. Chapman George J. Hirasaki Gerald R. Dickens Brandon Dugan

Gas hydrate can precipitate in pore space of marine sediment when gas concentrations exceed solubility conditions within a gas hydrate stability zone (GHSZ). Here we present analytical expressions that relate the top of the GHSZ and the amount of gas hydrate within the GHSZ to the depth of the sulfate-methane transition (SMT). The expressions are strictly valid for steady-state systems in which...

2011
Gaurav Bhatnagar Walter G. Chapman Brandon Dugan Gerald R. Dickens George J. Hirasaki

[1] We develop a theory that relates gas hydrate saturation in marine sediments to the depth of the sulfate‐ methane transition (SMT) zone below the seafloor using steady state, analytical expressions. These expressions are valid for systems in which all methane transported into the gas hydrate stability zone (GHSZ) comes from deeper external sources (i.e., advective systems). This advective co...

Journal: :The Journal of Experimental Medicine 1962
Albert A. Benedict Ronald J. Brown Rajalakshmi Ayengar

Rabbit antibovine serum albumin antisera were fractionated by zone electrophoresis on starch, zone ultracentrifugation in sucrose density gradients, and diethylaminoethyl-cellulose chromatography, and were assayed by the passive HA technique. Antisera had at least two antibodies: one associated with a fraction characterized as a gamma-2 globulin with a sedimentation rate of 7.3S and low anionic...

2002
EARL W. DAVIE

Factor VIII (antihemophilic factor) has been purified approximately 500.fold from the cryoprecipitate fraction of human plasma. The isolation procedure involves adsorption of contaminants with Al(OH),, column chromatography on tricalcium citrate-cellulose, precipitation with concanavalin A, and an agarose gel filtration step. The linal product is homogeneous when examined by zone electrophoresi...

Journal: :Geological Society, London, Special Publications 2021

Abstract The Jenkyns Event or Toarcian Oceanic Anoxic was an episode of severe environmental perturbations reflected in carbon isotope and other geochemical anomalies. Although well studied the epicontinental basins NW Europe, its effects are less understood open marine environments. Here we present new (carbon isotope, CaCO 3 , [Mn]) nannofossil biostratigraphic data from Tölgyhát Kisgerecse s...

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