Calcite-aragonite speleothems from a hand-dug cave in Northeast Kansas

Siegel, Frederic R.; Dort, Wakefield

doi:10.5038/1827-806x.2.1.15

Cited by 13 publications

(7 citation statements)

References 1 publication

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“…Alternating deposition of aragonite and calcite can be interpreted in at least two ways. Aragonite is commonly associated with drier conditions and greater evaporation, and calcite with wetter conditions and less evaporation, and thus a lower saturation state (Murray, 1954;Siegel, 1965;Siegel and Dort, 1966;Thrailkill, 1971;Reams, 1972;Cabrol and Coudray, 1982;Railsback et al, 1994). On the other hand, aragonite is known to be favored by precipitation at higher temperatures and calcite by precipitation at lower temperatures (Burton and Walter, 1987).…”

Section: General Inferences From the Mineralogy Of Stalagmite Pgh-1mentioning

confidence: 94%

Panigarh cave stalagmite evidence of climate change in the Indian Central Himalaya since AD 1256: Monsoon breaks and winter southern jet depressions

Liang

Brook

Kotlia

et al. 2015

Quaternary Science Reviews

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Section: General Inferences From the Mineralogy Of Stalagmite Pgh-1mentioning

confidence: 94%

Panigarh cave stalagmite evidence of climate change in the Indian Central Himalaya since AD 1256: Monsoon breaks and winter southern jet depressions

Liang

Brook

Kotlia

et al. 2015

Quaternary Science Reviews

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“…Greater values of δ 13 C associated with Type L surfaces likewise suggest drier conditions, in that less extensive soil respiration and/or the presence of C4 vegetation can lead to greater δ 13 C of spelean CaCO 3 . The frequency of aragonite beneath Type L surfaces further suggests that such surfaces form in drier conditions (Murray, 1954;Pobeguin, 1965;Siegel, 1965;Siegel & Dort, 1966;Thrailkill, 1971;Cabrol & Coudray, 1982). Finally, the scarcity of silt-to-sand-sized detrital grains near Type L surfaces is at least compatible with, if not suggestive …”

Section: Layer-bounding Surfaces In Stalagmitesmentioning

confidence: 99%

“…The common deposition of calcite over Type E surfaces, even in stalagmites dominantly of aragonite (as in Figs. 3C, 3E, 4B, and 4C), further suggests the association of Type E surfaces with wetter conditions (Murray, 1954;Pobeguin, 1965;Siegel, 1965;Siegel & Dort, 1966;Thrailkill, 1971;Cabrol & Coudray, 1982).…”

Section: Processmentioning

confidence: 99%

Layer-bounding surfaces in stalagmites as keys to better paleoclimatological histories and chronologies

Railsback¹,

Akers²,

Wang³

et al. 2013

IJS

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Petrographic recognition of layer-bounding surfaces in stalagmites offers an important tool in constructing paleoclimate records. Previous petrographic efforts have examined thickness of layers (a possible proxy for annual rainfall) and alternation of layers in couplets (a possible indicator of seasonality). Layer-bounding surfaces, in contrast, delimit series of layers and represent periods of non-deposition, either because of exceptionally wet or exceptionally dry conditions.Two types of layer-bounding surfaces can be recognized according to explicitly defined petrographic criteria. Type E layer-bounding surfaces are surfaces at which layers have been truncated or eroded at the crest of a stalagmite. Keys to their recognition include irregular termination of layers otherwise present on the stalagmite’s flank, dissolutional cavities, and coatings of non-carbonate detrital materials. Type E surfaces are interpreted to represent wet periods during which drip water became so undersaturated as to dissolve pre-existing stalagmite layers, and thus they necessarily represent hiatuses in the stalagmite record. Type L layer-bounding surfaces are surfaces below which layers become thinner upward and/or layers have lesser lateral extent upward, so that the stalagmite’s layer-specific width decreases. They are thus surfaces of lessened deposition and are interpreted to represent drier conditions in which drip rate slowed so much that little deposition occurred. A Type L surface may, but does not necessarily, represent a hiatus in deposition. However, radiometric age data show that Type L surfaces commonly represent significant hiatuses.These surfaces are significant to paleoclimate research both for their implications regarding climate change (exceptionally wet or dry conditions) and in construction of chronologies in which other data, such as stable isotope ratios, are placed. With regard to climate change, recognition of these surfaces provides paleoclimatological information that can complement or even substitute for geochemical proxies. With regard to chronologies, recognition of layer- bounding surfaces allows correct placement of hiatuses in chronologies and thus correct placement of geochemical data in time series. Attention to changing thickness of annual layers and thus to accumulation rate can also refine a chronology. A chronology constructed with attention to layer-bounding surfaces and to changing layer thickness is much more accurate than a chronology in which hiatuses are not recognized at such surfaces

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“…Holmgren et al (2003) argue that the upper, aragonite part of the Cold Air Cave T8 stalagmite was deposited much faster (11 mm/ 100 year from 10.2 to 0 ka) than the basal calcite section (2 mm/ 100 year from 24.4 to 12.7 ka), indicating that the Holocene was much wetter than the late Pleistocene. However, if the calcite is primary and not altered aragonite, the presence of the calcite is more likely to indicate wetter conditions during deposition rather than drier (Cabrol and Coudray, 1982;Murray, 1954;Pobeguin, 1955;Reams, 1972;Siegel, 1965;Siegel and Dort, 1966;Thrailkill, 1971). This would be particularly true in a dolomite cave where percolating waters have high Mg/Ca ratios that favor deposition of aragonite rather than calcite.…”

Section: Paleoclimatic Inferences From the Wonderwerk Data And Comparmentioning

confidence: 97%

A 35ka pollen and isotope record of environmental change along the southern margin of the Kalahari from a stalagmite and animal dung deposits in Wonderwerk Cave, South Africa

Brook

Scott

Railsback

et al. 2010

Journal of Arid Environments

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Calcite-aragonite speleothems from a hand-dug cave in Northeast Kansas

Cited by 13 publications

References 1 publication

Panigarh cave stalagmite evidence of climate change in the Indian Central Himalaya since AD 1256: Monsoon breaks and winter southern jet depressions

Panigarh cave stalagmite evidence of climate change in the Indian Central Himalaya since AD 1256: Monsoon breaks and winter southern jet depressions

Layer-bounding surfaces in stalagmites as keys to better paleoclimatological histories and chronologies

A 35ka pollen and isotope record of environmental change along the southern margin of the Kalahari from a stalagmite and animal dung deposits in Wonderwerk Cave, South Africa

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