Allison (1988, 1990) examined the intact strength properties of several types of carbonate rocks and considered that dynamic Young's modulus is a good indicator of rock material strength for geomorphic purposes, and cast doubts on the reliability.
Developments in a non-destructive method of determining rock strength
Australie ; Géographie physique ; Géomorphologie appliquée ; Mécanique des roches ; Méthodologie ; Napier Range ; Roche carbonatée ; Western Australia
The results presented here confirm the use of the ultrasonic apparatus as a technique for indirectly determining rock strength by determining Dynamic Young's Modulus. The results also indicate that the ultrasonic apparatus can be used as a field
The occurrence of carbonate rocks and paleokarst in Japan.
L'A. recense les roches carbonatées du Japon. Leur âge s'étend du Précambrien au Quaternaire. Il livre aussi les résultats concernant l'érosion paléokarstique dans les roches carbonatées du Paléozoïque et du Mésozoïque.
Réflexions sur les cimentations carbonatées en milieux littoraux: exemple du Quaternaire littoral de la Tunisie: Tyrrhénien et formations associées in Le beach-rock.
Ancien rivage ; Beach rock ; Calcarénite ; Cimentation carbonatée ; Diagenèse ; Grès ; Géographie physique ; Géomorphogenèse ; Littoral ; Méditerranée ; Méditerranéens, pays ; PICG 200 ; Pléistocène ; Quaternaire marin ; Roc he ; Roche carbonatée
This paper describes a series of experiments designed to isolate the effects of minimum temperature, rate of freezing, and salt concentration on the breakdown of rocks immersed in distilled water or salt solutions of varying strength. Discussion
The Salento area is a narrow peninsula composed of Cretaceous and Neogenic carbonaticrocks constituting the southernmost part of the emerged Apulian foreland. A karstic landscape shaped on Upper Cretaceous - Lower Pleistocene rocks and covered
Experimental salt weathering of limestones in relation to rock properties
Calcaire ; England ; Expérimentation ; France ; Géophysique ; Mésozoïque ; Météorisation ; Portugal ; Roche carbonatée ; Royaume-Uni ; Sel ; Simulation
Carbonate rock ; England ; Experimentation ; France ; Geophysics ; Limestone ; Mesozoic ; Portugal ; Salt ; Simulation ; United Kingdom ; Weathering
; assessment of the importance of modulus of elasticity and other factors in affecting durability; and assessment of the use of impulse excitation techniques to monitor changes in rock modulus of elasticity. The rocks showed a wide spectrum of durabilities.
The form of rock slopes in tropical limestone and their associations with rock mass strength
Australie ; Calcaire ; Géographie physique ; Mécanique des roches ; Météorisation ; Napier Range ; Roche carbonatée ; Versant ; Western Australia ; Zone intertropicale
à l'intérieur de ce continuum, mise en évidence de l'importance des propriétés de rock mass spécifique en déterminant des variations spatiales de forme de versant.
Essai de synthèse sur le beach-rock in Le beach-rock.
Beach rock ; Géographie physique ; Géomorphogenèse ; Littoral ; Milieu marin ; Niveau marin ; PICG 200 ; Sédimentologie
A l'issue du colloque sur le beach-rock, les participants ont élaboré la définition suivante: le beach-rock est une formation sédimentaire indurée sous l'effet d'une cimentation carbonatée, réalisée au niveau de l'étage médiolittoral. Il existe des
beach-rocks fossiles, situés à des altitudes supérieures ou au contraire inférieures au niveau actuel de la mer.
Acid rain ; Applied geomorphology ; Archaeology ; Atmospheric pollution ; Carbonate rock ; Chemical erosion ; Methodology ; United States ; Weathering
Relative legibility of dated inscriptions is closely associated with measured surface recessions for 3895 Vermont marble tombstones, and the resulting ordinal-to-ratio transfer function allows weathering rates to be computed for many exposed rock
Landform replication experiments on quarried limestone rock slopes in the English Peak District
Action anthropique ; Calcaire ; Carrière ; Dynamique de versant ; England ; Géomorphologie appliquée ; Karst ; Restauration ; Roche carbonatée ; Royaume-Uni ; Versant
Applied geomorphology ; Carbonate rock ; England ; Human impact ; Karst ; Limestone ; Quarry ; Restaurant trade ; Slope ; Slope dynamics ; United Kingdom
This paper describes the land surface changes resulting from limestone quarrying and considers the nature of landform evolution on quarried limestone rock slopes. This is followed by a description of a new technique known as restoration blasting
Rates and mechanisms of change in hard rock coastal cliffs in Coasts : erosion and sedimentation.
Calcaire ; England ; Falaise ; Géographie physique ; Géomorphodynamique ; Isle of Purbeck ; Ligne de rivage ; Littoral ; Mécanique des roches ; Roche carbonatée ; Royaume-Uni
Investigations have concentrated on the Jurassic Portland Limestone outcrop of the Isle of Purbeck. Three types of data are considered, including mapped changes in the nature and location of the cliffline, material strength and the rock mass
discontinuity pattern. Emphasis is thus placed on the synthesis of quantifiable rock mechanics parameters and details of change in coastline morphology. Results indicate that although cliff retreat shows no regular spatial or temporal pattern, clear trends can
Asian part of Russia ; Carbonate rock ; Cold area ; Karst ; Karstification ; Permafrost ; Sakha ; Thermal regime
Various karst processes and karst phenomena at scales from the macro to the micro occur in the cryolithozone of the middle Lena River basin. Karst processes have a warming impact on the enclosing perennially cryotic rocks and favour the formation
Atlas ; Liquid thin film ; Microfacies ; Sedimentary rock ; Sedimentary rocks ; Thin sections
Cet ouvrage présente plus de 200 illustrations en couleur des constituants courants et des textures des roches sédimentaires en lames minces. La moitié du livre est consacrée aux roches carbonatées mais sont également étudiés les grès, roches
This work describes for the first time outcrops of metamorphosed limestones (Cipoline and Brecciated marbles) found at Mondragone, Caserta Province, Campania. These rocks are formed by blocks and olistoliths, up to size of several thousand cubic
Quantitative data on rock surface millimetre-scale roughness are presented concerning the splash and spray geomorphologic domains of 2 coastal profiles developed on Mediterranean carbonate rocks. Differences of the roughness characteristics
are attributed to rock properties, weathering agents and bioerosion. In the splash zone, roughness is related to sparsely distributed pattern of bioerosion, salt weathering and wave attack. In the spray zone, smooth surfaces seem to be the response
to the solution processes that predominate, exerting a more homogenous influence on rock surface evolution.
The A. summarizes new sedimentological, petrological and mineralogical evidences for dependence of structural and textural changes in carbonate rocks on various types of diagenetic environments. The results are compared with the conclusions
concerning the highly recristallized superficial zones as well as the loose or recemented residual mantles occuring on the carbonate rocks in the Cuban Archipelago. (MS).