Results 321 to 330 of about 859,123 (399)
Some of the next articles are maybe not open access.
Sedimentary Rocks of Early Mars
Science, 2000Layered and massive outcrops on Mars, some as thick as 4 kilometers, display the geomorphic attributes and stratigraphic relations of sedimentary rock. Repeated beds in some locations imply a dynamic depositional environment during early martian history.
Kenneth S. Edgett, Michael C. Malin
openaire +3 more sources
, 2012
Sedimentary rock-hosted strata-bound copper deposits are widespread in the Kangdian region of the Central Yunnan and southern Sichuan provinces, southwest China.
Xin-Fu Zhao +6 more
semanticscholar +1 more source
Sedimentary rock-hosted strata-bound copper deposits are widespread in the Kangdian region of the Central Yunnan and southern Sichuan provinces, southwest China.
Xin-Fu Zhao +6 more
semanticscholar +1 more source
Rocks and Rock Formations, 2019
1. Sediments and Methods of Their Study 2. Erosional Processes 2.1. Weathering 2.2. Transport 3. Depositional Processes and Sediment Types 3.1. Features of Detrital Sediments 3.2. Bedforms and Sedimentary Structures 3.3. Trace Fossils 3.4.
PhD. John J. Renton +7 more
semanticscholar +1 more source
1. Sediments and Methods of Their Study 2. Erosional Processes 2.1. Weathering 2.2. Transport 3. Depositional Processes and Sediment Types 3.1. Features of Detrital Sediments 3.2. Bedforms and Sedimentary Structures 3.3. Trace Fossils 3.4.
PhD. John J. Renton +7 more
semanticscholar +1 more source
The Sedimentary Rock Record of Mars: Distribution, Origins, and Global Stratigraphy
, 2012The last decade of Mars exploration produced a series of discoveries that provide compelling evidence for the existence of sedimentary rocks on Mars. Previously, Mars was regarded principally as a volcanic planet, the dominant surface processes of which ...
J. Grotzinger, R. Milliken
semanticscholar +1 more source
Sediments and Sedimentary Rocks
2018We are on more familiar ground in this chapter, looking at processes and materials found in the world all around us. Even the names of sedimentary rocks are well known—sandstone, shale, limestone, and so on. Clearly, these materials are highly relevant to vineyard geology because more than three-quarters of the land surface is sedimentary in origin ...
openaire +1 more source
1978
The factor of grade size is the one most used for the classification of sedimentary rocks (p. 190). Four groups may be distinguished:— 1. Rudaceous 1—Rocks consisting chiefly of gravel, pebbles, cobbles, or boulders. Loose materials of this class are gravels, pebble-beds, shingle, boulder-beds, scree, talus, etc.
openaire +2 more sources
The factor of grade size is the one most used for the classification of sedimentary rocks (p. 190). Four groups may be distinguished:— 1. Rudaceous 1—Rocks consisting chiefly of gravel, pebbles, cobbles, or boulders. Loose materials of this class are gravels, pebble-beds, shingle, boulder-beds, scree, talus, etc.
openaire +2 more sources
Sediments and Sedimentary Rocks
2020Thus sediments are products of mechanical and/or chemical weathering and they are transported by different media and over variable distances to a site of deposition, be it marine or terrestrial. Transport can be achieved simply by gravity, leading to bulk downward transfer of rock masses such as in the case of landslides or mountain creeps.
Hartwig E. Frimmel, Martin Okrusch
openaire +2 more sources
Nature, 1961
Microscopic Sedimentary Petrography By Prof. Albert V. Carozzi Pp. viii + 485. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1960.) 92s. net.
openaire +2 more sources
Microscopic Sedimentary Petrography By Prof. Albert V. Carozzi Pp. viii + 485. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1960.) 92s. net.
openaire +2 more sources
Nomenclature for Sedimentary Rocks
AAPG Bulletin, 1970Despite the many excellent papers on classification of sedimentary rocks, there is still so much loose and variable usage of names that it is not possible to be certain of--or in some cases even to guess at--the intended meanings of terms found in the literature.
openaire +2 more sources
1993
Abstract Over vast areas of the undeformed platform of southwestern Canada, the sedimentary cover of the ancient North American Craton is entirely of Phanerozoic age. In northwestern Canada, on the other hand, thick Proterozoic strata intervene between Phanerozoic deposits and crystalline basement (Fig. 4A.1).
openaire +2 more sources
Abstract Over vast areas of the undeformed platform of southwestern Canada, the sedimentary cover of the ancient North American Craton is entirely of Phanerozoic age. In northwestern Canada, on the other hand, thick Proterozoic strata intervene between Phanerozoic deposits and crystalline basement (Fig. 4A.1).
openaire +2 more sources