rhourd

rhourd

[rȯrd]
(geology)
A pyramid-shaped sand dune, formed by the intersection of other dunes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Il porte sur l'inspection par racleurs instrumentes des oleoducs NH2 30'' de Ohanet a Haoudh El Hamra a Hassi Messaoud pour le transport de condensat de l'oleoduc GPL d'Adrar a Hassi R'mel ainsi que la section LR/16'' de Rhourd Nouss a Gassi Touil.
.a <p>But the documents submitted by Petrofac and IKPT on July 20 "are not sufficient and do not meet the requirements of Sonatrach, guaranteeing the production capacity of 4.3 million tonnes of LNG per year, measured in ships," Sonatrach said in a statement posted on its Web site.a "Sonatrach made the decision not to retain the Consortium PETROFAC/IKPT for the construction of an LNG train (LNG3.Z) in Arzew," the statement added.a "Sonatrach will start discussions with the consortium ranked in second position, namely Snam-Projetti/Chyoda for the implementation of this project."a The project will be financed 100 percent by Sonatrach and the plant is due to be fed by gas from Algeria's Gassi Touil and Rhourd Nouss gas fields.
The plant, with a production capacity of 4.3 million tonnes a year, will be fed by gas from Algeria's Gassi Touil and Rhourd Nouss gas fields.
The tallest dunes, which are pyramidal or star-shaped, are called rhourds and may occasionally reach a height of 1,640 ft (500 m), though dunes in dune massifs are usually 492-820 ft (150-250 m) tall.
The largest sand structures (rhourds, linear dunes or seifs, elbs, and silks) are stable, while barchan dunes may move dozens of meters a year (even hundreds of meters in the sand tongues of Patagonia).