«WENTWORTH SCALE»に関連する英語の本
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1
Sedimentology and Stratigraphy
There are variants on this scheme and there are a number of ways of providing
subdivisions within these categories, but sedimentologists generally use the
Wentworth Scale (in; Q) to define and name terrigenous clastic deposits. Fig. 2.2
The ...
2
Encyclopedia of Soil Science
WETTING FRONT Table W2 Wentworth scale F Size (mm) Size class À8 256 1/2
1/4 1/8 1/16 1/256 Boulders À664 Cobbles À24 Pebbles À12 Granules 01 Very
coarse sand 1 Coarse sand 2 Medium sand 3 Fine sand 4 Very fine sand 8 Silt ...
3
Compaction of Coarse-Grained Sediments, I
(See, for example, Krumbein and Pettijohn, 1938; Pettijohn, 1957; Krumbein and
Sloss, 1963; Griffiths, 1967; and Pettijohn et al., 1972) The Wentworth scale is a
geometric scale with each division differing from the previous one by a ratio of ...
G.V. Chilingarian, K.H. Wolf, 1975
4
Microfacies of Carbonate Rocks: Analysis, Interpretation and ...
The Udden-Wentworth scale is a geometric scale ex- tending from <1/256 mm to
>256 mm. A modification of this scale is the φ-scale which allows grain-size data
to be expressed in units of equal value. The φ size is the negative logarithm to ...
5
Elements of Marine Ecology
The much-used Wentworth scale of particle sizes (see Table 6.1) is geometric,
giving smaller intervals towards the finer end of the range. Using this scale, a
pebble is a pebble only if its size lies between 4 and 64 mm diameter. A pebble
larger ...
Ronald Victor Tait, Frances Dipper, 1998
6
Introduction to Mineralogy and Petrology
A common terminology, based on grain size of sediments, is qualita- tively
indicated for sedimentary rocks in sedimentology and petrology (Table 5.1). The
grain sizes are widely used after Atter- berg and Wentworth scale. The Atterberg
scale ...
7
Sediment and Contaminant Transport in Surface Waters
Particle sizes often are classified using the Wentworth scale (Table 2.1). This
scale standardizes and quantifies the definitions of terms commonly used to
describe sediments (e.g., clay-size, silt, sand). The basic unit of the scale is 1 mm;
...
8
Sand: The Never-ending Story
The Udden-Wentworth scale defines the terminology and size categories for
different grain sizes, from microscopic particles of mud to boulders (the latter
being measured directly, not sieved). It clearly averages out sizes for grains that
are ...
9
The Rock Physics Handbook: Tools for Seismic Analysis of ...
5.3 Particle size and sorting Synopsis Particle size Sorting Particle size is one of
the most fundamental parameters of elastic rocks. The Udden— Wentworth scale
uses a geometric progression of grain diameters in millimeters, dI 1, 2, 4, 8, 16, ...
Gary Mavko, Tapan Mukerji, Jack Dvorkin, 2009
10
Theriosynoecum Wyomingense (Branson, 1935), a Possible Guide ...
The phi scale, which is a logarithmic transformation of the Wentworth scale (
Krumbein, 1934) , is used also for convenience in reporting NONOPAQUE
HEAVY MINERALS, BLACK HILLS C7. Black Hills Bighorn Basin, Wyoming Wind
River ...
Israel Gregory Sohn, Raymond E Peck, 1963
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"Sand" means something different to me than it does to you, probably
Here's an expanded version of the Wentworth (1922) classification scheme ... Look at the Wentworth scale, and you'll note that if MAHLI can see grains in the ... «The Planetary Society, 1月 13»
