Origin of Sedimentary Rocks

Blatt, Harvey; Middleton, Gerard V.; Murray, Raymond C.

doi:10.1097/00010694-197305000-00019

Cited by 352 publications

(215 citation statements)

References 0 publications

Supporting

Mentioning

182

Contrasting

Unclassified

Order By: Relevance

“…Although both contain cross strata, the interbed microform differs from the avalanche bed microform in having a smaller median grain size. Thus the different microform types can have different modes of both median grain size and permeability [Basumallick, 1966;Robertson and Caudle, 1971;Weber et al, 1972;Beard and Weyl, 1973;Blatt et al, 1980;Chandler et al, 1989;Jensen et al, 1996].…”

Section: Microformsmentioning

confidence: 99%

Spatial correlation of permeability in cross‐stratified sediment with hierarchical architecture

Ritzi

Dai

Dominic

et al. 2004

Water Resources Research

104

167

View full text Add to dashboard Cite

[1] Cross-stratified deposits can give rise to a hierarchy of permeability modes, across scales, corresponding to a hierarchy of sedimentary unit types. The shape of the sample semivariogram for permeability can be largely controlled by the shape of the crosstransition probabilities of unit types having the greatest contrast in permeability. The shape of those cross-transition probabilities can be, in turn, largely determined by the variance of the lengths of those unit types. A sufficient condition for an exponential-like semivariogram is the repeated occurrence of unit types having both a contrast in permeability and a large length variance. These relationships are shown through writing the identities for spatial correlation of permeability in a hierarchical and multimodal form and as a function of the transition probabilities for the sedimentary unit types. These relationships are also illustrated through analyzing data representing cross-stratified sediments within a point bar deposit.

show abstract

Section: Microformsmentioning

confidence: 99%

Spatial correlation of permeability in cross‐stratified sediment with hierarchical architecture

Ritzi

Dai

Dominic

et al. 2004

Water Resources Research

104

167

View full text Add to dashboard Cite

show abstract

“…6). The term "pelletoidal" is used after Blatt et al ( 1972) and is preferred to the more general and less specific "peloidal". Pelletoidal has the same meaning as "clotted micrite" or "structure grumel euse" used by some authors.…”

Section: Biological Content and Internal Structurementioning

confidence: 99%

Hauterivian shallow marine calcareous biogenic mounds: S.E. Spain

Arias

Massé²,

Vilas

1995

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

Hauterivian biogenic deposits from the Prebetic northern margin near Caudete (Albacete Province, southeastern Spain) are represented by low domed bodies, less than 10 m thick, surrounded by bioclastic sediments and capped by siliciclastics. They consist of a coral, stromatoporoid and microbial framework with cavities filled by mud, rapidly lithified. Intermound bioclastics, derived from the mound organic community, reflect high energy conditions and shallow water settings. Mound growth and architecture were controlled by nutrient fluxes and internal light gradients.Comparisons with closely related structures from the Palaeozoic and the Recent show some similarities but also significant differences; the example documented here also departs from other Cretaceous occurrences.

show abstract

“…Mineralogical maturity, as the term is used in this paper, can be defined as a compositional state of a clastic sedimentary body wherein there is a dominance of quartz and an absence or minority of lessresistant particles such as feldspars, detrital carbonates or lithic fragments (Blatt et al, 1972;Pettijohn et al, 1972). Sandstones that meet this definition are classified as quartz arenites or orthoquartzites if they are at least 95% quartz (Pettijohn et al, 1972).…”

Section: Introductionmentioning

confidence: 99%

Mineralogical maturity in dunefields of North America, Africa and Australia

2004

View full text Add to dashboard Cite

Studies of dunefields in central and western North America show that mineralogical maturity can provide new insights into the origin and evolution of aeolian sand bodies. Many of the world's great sand seas in Africa, Asia and Australia are quartzdominated and thus can be considered to be mineralogically mature. The Algodones (California) and Parker (Arizona) dunes in the southwestern United States are also mature, but have inherited a high degree of mineralogical maturity from quartz-rich sedimentary rocks drained by the Colorado River. In Libya, sediments of the Zallaf sand sea, which are almost pure quartz, may have originated in a similar fashion. The Fort Morgan (Colorado) and Casper (Wyoming) dunefields in the central Great Plains of North America, and the Namib sand sea of southern Africa have an intermediate degree of mineralogical maturity because their sources are large rivers that drained both unweathered plutonic and metamorphic rocks and mature sedimentary rocks. Mojave Desert dunefields in the southwestern United States are quite immature because they are in basins adjacent to plutonic rocks that were their sources. Other dunefields in the Great Plains of North America (those in Nebraska and Texas) are more mature than any possible source sediments and therefore reflect mineralogical evolution over time. Such changes in composition can occur because of either of two opposing long-term states of the dunefield. In one state, dunes are stable for long periods of time and chemical weathering depletes feldspars and other weatherable minerals in the sediment body. In the other state, which is most likely for the Great Plains, abrasion and ballistic impacts deplete the carbonate minerals and feldspars because the dunes are active for longer periods than they are stable. D

show abstract

Origin of Sedimentary Rocks

Cited by 352 publications

References 0 publications

Spatial correlation of permeability in cross‐stratified sediment with hierarchical architecture

Spatial correlation of permeability in cross‐stratified sediment with hierarchical architecture

Hauterivian shallow marine calcareous biogenic mounds: S.E. Spain

Mineralogical maturity in dunefields of North America, Africa and Australia

Contact Info

Product

Resources

About