Results 1 to 10 of about 108,543 (212)

The Upper Ordovician reef Bol’shaya Kos’yu, Ilych River, the Northern Urals (structure, paleobiocenosis, microfacies, model of formation)

open access: yesЛитосфера, 2020
Subject. The Upper Ordovician reef Bol’shaya Kos’yu, located on the western slope of the Northern Urals in the basin of the Ilych River is a unique object among coeval reefs due to the weak dolomitization of rocks and the ability to trace the phases of ...
L. A. Shmeleva
doaj   +1 more source

Reef revelations [PDF]

open access: yesCurrent Biology, 2008
SummaryThe results of a new survey of organisms at three sites on the Great Barrier Reef have revealed a wealth of new species. Hannah Robertson reports.
openaire   +2 more sources

Exploring the multispectral acoustic response of reef habitats

open access: yesFrontiers in Remote Sensing
In recent decades, the value and utility of multibeam bathymetry and backscatter data has been increasingly recognized within the field of seascape ecology (the ocean-centric equivalent of landscape ecology) to map the bio- and geodiversity of the ocean ...
Pedro S. Menandro   +3 more
doaj   +1 more source

Nocturnal fish chorusing activity in the central Red Sea mesophotic reef zone and adjacent shallow sites

open access: yesFrontiers in Remote Sensing
Through sharing characteristics of chorus activity, especially in regions that are particularly data deficient, we can aim at a broader, global understanding of fish chorusing and consequently important spatiotemporal changes in habitat use by schooling ...
Michelle-Nicole Havlik   +6 more
doaj   +1 more source

Evaluation of porosity, permeability, and reservoir quality of the Asmari Formation using sedimentary facies and diagenesis data in the Ahvaz oil field [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches
The Asmari Formation, the Oligo–Miocene in age, has been deposited in the Dezful Embayment and other parts of the Zagros Basin. In the Ahvaz oil field, this formation is mostly composed of limestones, dolomites, marls, and sandstones.
Akbar Heidari   +2 more
doaj   +1 more source

Influence of Topographic and Geological Features on the Seismic Response of the Reef Site in the South China Sea

open access: yesJournal of Marine Science and Engineering, 2023
Insufficient comprehension of the seismic impact of the reef terrain, geology, and material properties of the reefs in the South China Sea still presents considerable impediments in studying the seismic response of reef engineering sites and assessing ...
Xin Bao, Jingbo Liu, Fei Wang
doaj   +1 more source

Coral Reefs on the Edge? Carbon Chemistry on Inshore Reefs of the Great Barrier Reef

open access: yesPLoS ONE, 2014
While increasing atmospheric carbon dioxide (CO2) concentration alters global water chemistry (Ocean Acidification; OA), the degree of changes vary on local and regional spatial scales. Inshore fringing coral reefs of the Great Barrier Reef (GBR) are subjected to a variety of local pressures, and some sites may already be marginal habitats for corals ...
Sven Uthicke   +2 more
openaire   +4 more sources

Variación espacio- temporal de los peces herbívoros (acanthuridae y scaridae) en dos localidades arrecifales de cuba con diferentes niveles de conservación/ Spatial and temporal variation of herbivorous fishes (Acanthuridae and Scaridae) in two cuban reef locations with different levels of conservation

open access: yesRevista de Investigaciones Marinas, 2018
Los peces de las familias Acanthuridae y Scaridae son herbívoros que consumen una alta proporción de la producción primaria en los arreci- fes. La ausencia de grandes carnívoros aumenta la vulnerabilidad de los peces herbívoros ante la pesca excesiva en
Delmis Cabrera Guerra   +6 more
doaj  

Geological characteristics of the Lower Carboniferous Heshirafu Formation reef in the Artashi section in the Southwest Tarim Basin

open access: yes地质科技通报
Objective Research on reefs is highly important for determining sedimentary environments and for oil and gas exploration, but relatively few studies have been conducted on Carboniferous reefs in the Southwest Tarim Basin.
Yijun WANG   +5 more
doaj   +1 more source

Fossil polychaetes of the Lower Carnian limestone at Lesno Brdo, central Slovenia

open access: yesGeologija, 2018
Lower Carnian massive limestone, quarried at Lesno Brdo in central Slovenia, contains irregular lenses of limestone riddled with fossil agglutinated tubes of Terebellida (Polychaeta).
Tim Sotelšek   +3 more
doaj   +1 more source

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