Durabilities of sand size schist and 'volcanic' rock fragments during fluvial transport, Elk creek, Black Hills, South Dakota

Cameron, Kenneth L.; Blatt, Harvey

doi:10.1306/74d722d4-2b21-11d7-8648000102c1865d

Cited by 58 publications

(25 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of both the present work and the earlier study of CAMERON and BLATT (1971) reveal some of the "hidden" factors that influence our ability to recognize a volcanic source area in an ancient sandstone. In addition to the fact,~r of distance from source area, we must consider the areal extent of the volcanic outcrop.…”

Section: Discussionsupporting

confidence: 50%

“…Yet the persistence of such grains during stream transport is poorly known. The only study that has tried to evaluate the effect of stream transport was made by CAMERON and BLATT (1971) but their conculsions were clouded by the existence of Pleistoeene terrace deposits that eontain volcanic fragments along the entire 160 km stream length. This prevented evaluation of the effects of the modern stream.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sediment dispersal from Vogelsberg Basalt, Hessen, West Germany

Blatt

1978

Geol Rundsch

View full text Add to dashboard Cite

ZusammenfassungVulkano-klastische Flul3sedimente irn KorngriSBenbereich von Sanden, die sich aus den Ergul3gesteinen und hypabyssischen Gesteinen des Vogelsbergs herlciten, nehmen die I-Iiiufigkeit von mehr als 90 ~ bis auf weniger als 5 ~ innerhalb yon 20 km vom Ursprungsgebiet ab.Die starke Abnahme ist als Folge einer Verdfinnung der Flul3sedimente entstanden. Die Verdfinnung ist dutch die Zersetzung des leicht verwitterbaren Buntsandsteins auf den Ebenen, die diese vulkanischen Gesteinen geben, verursacht.Da der Buntsandstein von feink6rniger Natur ist, wird der Verdfinnungseffekt in der Feinsandfraktion der FluBsedimente besonders deutlich beobachtet.Wfirde ein Geologe einst Gesteinsproben entnehmen, die aus diesen Sedimenten entstanden sind, so mfiBte er sich in einem Umkreis yon 10 km des heutigen Vogelsberggebietes befinden, um dessen Existenz nachweisen zu kSnnen. AbstractVolcanic detritus in sand size stream sediment spreading outward from Vogelsberg extrusive and hypabyssal rocks decreases in abundance from percentages exceeding 90 ~ to less than 5 ~ within 20 km of the source area. The rapid decrease results largely from dilution of the stream sediment resulting from disintegration of friable Bunter Sandstone on the plains surrounding the crystalline rocks. The effect is more pronouneed in the fine sand fraction of the stream sediment because the Bunter sand is fine grained.If a geologist of the post-Holocene were to sample this stream sand in outcrop, he would have to be located within about 10 km of the present Vogelsberg mass to infer its existence. R6sum4Les d6bris volcaniques dans les s6diments fluviaux de granularit6 sableuse provenant des roches extrusives et hypabyssales du Vogelsberg voient leur proportion d6croltre de 90 ~ moins de 5 ~ sur une distance de 20 km. A partir de leur origine. Cette d6erois-sanee rapide provient principalement de la dilution du s6diment fluvial par suite de la d6sint6gration des gr6s bigarr6s sur les plaines avoisinant les roches eristallines. L'effet est encore plus pronone6 dans la fraction fine du s6diment fluvial a cause de la finesse du sable bigarr6.Un g6ologue des temps futurs qui aurait A 6ehantillonner ce sable fluvial dans ses affleurements devrait rester dans les 10 kin. de l'aetuel Vogelsberg pour en pr6sumer l'existenee. EC~H reo~or pemnw CO6ripaTb npo6bl nopo~, o6paaoBamurixcn n3 ~aHnblX 3eanuenTOB, TO eMy npri~lewcfl Ox6npa+b ri3 ~o~pyr coapeMennoro paho,a Vogelberg'a a o~py~KnOCVn C pa~InycoM B 10 KM, qTO~bl ~OKa3[ITb FIX ria~nqrie.

show abstract

Section: Discussionsupporting

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Sediment dispersal from Vogelsberg Basalt, Hessen, West Germany

Blatt

1978

Geol Rundsch

View full text Add to dashboard Cite

show abstract

“…Pittman (1969) demonstrated loss of twinned feldspar derived from granitic sources along the Merced River in California in less than 80 km of transport. Cameron and Blatt (1971) reported loss of schist particles downstream from the Black Hills in South Dakota. However, a greater number of studies have shown that in most rivers, there is little change in the amount of quartz relative to feldspar or lithic fragments as a function of distance downstream (Hayes, 1962;Breyer and Bart, 1978;Potter et al, 2001).…”

Section: Fluvial Size Reduction Of Feldsparsmentioning

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

“…Vivero), suggesting dilution of these sup plies by plutoniclastic sands derived from granitoids in the same (Dickinson et al, 1983) source, or alternatively, their downstream mechanical destruction during transport (e.g. Cameron and Blatt, 1971;Mack, 1978).…”

Section: Rock Fragmentsmentioning

confidence: 99%

Holocene transgression recorded by sand composition in the mesotidal Galician coastline (NW Spain)

et al. 2010

View full text Add to dashboard Cite

This study confirms several inferences regarding Holocelle coastal dynamics and climate through a petrographic modal analysis of60 Holocelle sand samples recovered in seven sites along the N\V coast of the Iberian Peninsula. Fluvial sand can be discriminated from more mature intertidal and aeoliall sand according to texture and composition. Fluvial sand contains soil products and coastal sand has significant bioclasts. Quartzofeldspathic sand appears in the western area (produced by the erosion of granite and granitoid), and quartzolithic sand occurs in the eastern area (produced by the erosion of metasediment). Changes in sand composition during Holocelle deposition are manifested by an increase in modem carbonate clasts (1v1C) correlated with the Holocene transgression. Episodes of faster sea-level rise and subsequent erosion of surr ounding cliffs are indicated by the preservation of high proportions of feldspar in intertidal sand. In contrast, fl uvial sand is characterized by greater quartz enrichment. These inferences were confirmed by petrographic indices (carbonate clasts/total clasts, MClT; total feldsparsimonocrystalline quartz, FIQm; and plagioclase/total feldspars, P/F). The different maturity of intertidal and aeolian sands is revealed by their variable quartz contents, despite similar proportions of plagioclase and K-feldspar. This suggests mechanical abrasion as the main factor controlling maturity. In contrast, fl uvial sand shows depleted plagioclase contents as the result of inland weathering processes. Intertidal, beach and aeolian sands are essentially the products ofthe erosion of coastal cliffs and head deposits, with only the scarce contribution of fl uvial drainages. The long distance transport of Galician coastal sands is discarded based on the close relationship between their composition and that of local sand sources. Our findings indicate that short-distance transportof sediments from the west closed off coastal wetlands and occluded estuarine mouths during the Holocene transgression by deposition on sediment-trap zones along the irregul arly shaped Galician coast.

show abstract

Durabilities of sand size schist and 'volcanic' rock fragments during fluvial transport, Elk creek, Black Hills, South Dakota

Cited by 58 publications

References 0 publications

Sediment dispersal from Vogelsberg Basalt, Hessen, West Germany

Sediment dispersal from Vogelsberg Basalt, Hessen, West Germany

Mineralogical maturity in dunefields of North America, Africa and Australia

Holocene transgression recorded by sand composition in the mesotidal Galician coastline (NW Spain)

Contact Info

Product

Resources

About