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Nature Vol. 297 20 May 1982

220 upwelling22-24 and those formed along continental margins bor­ dering narrow, east-west seaways ('Tethyan-type' deposits)25 in areas of equatorial upwelling26 are typically associated with

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soc econ paleont mineur

soc econ paleont miner – Grinding Mill China. The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the continual introduction and updating of products.

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NiceHash Miner | NiceHash

When running, NiceHash Miner is connected to NiceHash platform and NiceHash open hashing power marketplace. Buyers select the algorithm and the speed while users or miners running the NiceHash Miner software fulfil that order by mining (hashing) - providing computing power to the network and get paid in Bitcoins.

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Facies Controls on Sandstone Diagenesis | SpringerLink

Before discussing the possible influences of depositional environment on diagenesis, one general and two more specific problems have to be considered:...

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Deep‐sea avulsion and morphosedimentary

SOC, European Way, Empress Dock, Southampton, SO14 3ZH, United Kingdom. Search for more papers by this author. M. CANALS, ... including rights for text and data mining and training of artificial intelligence technologies or similar technologies. The full text of this article hosted at iucr is unavailable due to technical difficulties.

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Hummocky cross-stratification is not produced purely under …

Hummocky cross-stratification is a type of bedding in sedimentary rocks caused by the draping of sand around low-steepness three-dimensional bedforms.

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Lithofacies relations in the Late Quaternary Niger Delta complex

A study of cores from thirty-three coreholes drilled in various parts of the Niger delta has shown tidal channel sand to be the dominant lithofacies type in the uppermost 30 m of the deltaic complex....

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Interpretation of neovolcanic versus

Interpretation of neovolcanic versus palaeovolcanic sand grains: an example from Miocene deep-marine sandstone of the Topanga Group (Southern California)

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Diagenetic evolution of the Carnian Wetterstein platforms of …

The carbonate platforms of the Wetterstein Formation of the Eastern Alps (Drau Range and Northern Calcareous Alps) show a distinct facies zonation of reefs and lagoons. While some lagoonal areas were...

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Late Pleistocene mixing zone dolomitization, southeastern Barbados

ABSTRACT Field, geochemical, and petrographic data for late Pleistocene dolomites from southeastern Barbados suggest that the dolomite precipitated in the zone of mixing between a coastal meteoric ...

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Distinctive thin‐bedded turbidite facies and related …

The impressive regularity and lateral persistence of bedding and depositional structures, combined with the association of thin hemipelagic intercalations are typical …

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The cretaceous/tertiary boundary impact hypothesis and the

Planktonic foraminifera show 30 to 45 percent of the species disappearing during the 300,000 to 400,000 years prior to the Cretaceous/Tertiary (K/T) boundary in continental shelf (El Kef, Tunisia) and epicontinental sea (Brazos River, Texas) sections.

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(PDF) Cenozoic progradation of northwestern Great Bahama …

PDF | On Jan 1, 1989, G.P. Eberli and others published Cenozoic progradation of northwestern Great Bahama Bank, a record of lateral platform growth and sea‐level fluctuations | Find, read and ...

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Magnesian calcite cements and their diagenesis: dissolution …

The most ubiquitous syn-sedimentary cements affecting Mururoa atoll are composed of magnesian calcite. Three main types are distinguished: fibrous, bladed and sparitic on the basis of petrography, mo...

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The large‐scale dynamics of grain‐size variation in

ABSTRACT. The concept of'syntectonic' conglomerate is based on the idea that gravel progradation is mainly generated by an increase in tectonic uplift and erosion …

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Saline lake carbonates within an Upper Jurassic‐Lower …

ABSTRACT. The Codocedo Limestone Member is a thin but laterally persistent lacustrine sequence within the red beds of the Upper Jurassic-Lower Cretaceous Quebrada …

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Integrated Facies Analysis | SpringerLink

To understand the formation and diagenesis of carbonate rocks mineralogical and geochemical data derived from the study of non-carbonate constituents, trace elements, and stable isotopes must be integrated. Other indicators for …

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The preservation of fossil leaves in Cretaceous volcaniclastic …

Microscopic measurement of the level of catagenesis of solid organic material in sedimentary rocks Spec. Pub. Soc. econ. Paleont. Miner. 26, 17 – 43 . Google Scholar

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Cross‐platform architecture of a sequence boundary in …

Stratigraphic analysis of mixed siliciclastic-carbonate lithofacies within the Middle Cambrian Bonanza King Formation of the southern Great Basin reveals three distinct facies associations that recor...

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soc econ paleont miner

Soc econ Paleont Miner, 16, Tulsa 168 Postma G, 1990, Depositional architecture and facies of river and fan deltas: a synthesis In: Coarsegrained Deltas (Ed by A Colella and DB Prior), pp1327Spec Publ Int AssSediment, 169 Ravenne.

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soc Econ Paleont Miner

Microscopic measurement of the level of catagenesis of solid organic material in sedimentary rocks Spec. Pub. Soc. econ. Paleont. Miner. 26, 17 – 43 . Google Scholar

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Sedimentology

ABSTRACT The Wagwater Trough is a fault-bounded basin which cuts across east-central Jamaica. The basin formed during the late Palaeocene or early Eocene and the earliest sediments deposited in the t...

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Secondary Reservoir Porosity in the Course of Sandstone …

Secondary porosity plays an important role in the diagenesis of sandstones. The volume of secondary porosity equals or exceeds that of primary porosity in the sandstones of many sedimentary basins worldwide and a significant percentage of the world's reserves of natural gas and crude oil are contained in secondary sandstone porosity.

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O.

(Pa~lfic ~ectl0n Soc. econ. Paleont. Miner. Volume and Guidebook No. 52, Los Angeles, Callforma, 1987). Geoid roughness and long-wavelength segmentation of the South Atlantic spreading ridge

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Sedimentary organic matter in condensed sections from …

A detailed analysis of sedimentary organic matter (or palynofacies) was carried out on thermally immature to early mature Upper Jurassic and Hauterivian condensed intervals in deep-sea carbonate–marl...

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219.indd

The maps show that the west coast of North America was one of the few continental margins situated favourably throughout the early to middle Palaeozoic for formation of …

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Carbonate sedimentation in a starved pull‐apart basin, …

ABSTRACT Geological mapping and sedimentological investigations in the Guilin region, South China, have revealed a spindle- to rhomb-shaped basin filled with Devonian shallow- to deep-water carbonates. This Yangshuo Basin is interpreted as a pull-apart basin created through secondary, synthetic strike-slip faulting induced by major …

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Debris flow (olistostromes) and slumping on a distal passive

An olistostrome accumulation up to 530 m thick occurs in the Casanova area of the northern Apennines. It lies within or above the calciturbiditic Palombini limestone-shale sequence, and is part of th...

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Controls on Carbonate Platforms and Basin Development

Seismic profiles across the top of northwestern Great Bahama Bank reveal that the modern bank is formed by the coalescence of three smaller platforms. This coalescence resulted …

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How Important Are Organic Acids in Generating Secondary …

The hypothesis that organic acids are responsible for the creation of significant volumes of secondary porosity and the enhancement of aluminium mobility in the subsurface is reviewed against data from reservoir intervals, laboratory experiments and mass-balance...

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