2006
DOI: 10.1086/504182
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Vertisol Carbonate Properties in Relation to Mean Annual Precipitation: Implications for Paleoprecipitation Estimates

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Cited by 76 publications
(41 citation statements)
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“…This variability is likely due to gilgai microtopography based on the vertic nature of the paleosols. The MAP values obtained for Zone 3 are, therefore, likely overestimates for microlows and underestimates for microhighs, e.g., [49].…”
Section: Paleoclimatic Significancementioning
confidence: 92%
See 1 more Smart Citation
“…This variability is likely due to gilgai microtopography based on the vertic nature of the paleosols. The MAP values obtained for Zone 3 are, therefore, likely overestimates for microlows and underestimates for microhighs, e.g., [49].…”
Section: Paleoclimatic Significancementioning
confidence: 92%
“…Gilgai microtopography is common in Vertisols and is caused by the seasonal expansion and contraction of expandable clays such as smectite [1,3,48]. When gilgai microtopography is present, some precipitation from micro-highs will be lost in surface runoff into micro-lows creating the possibility of producing disparate calculated MAP values from adjacent paleopeds depending on their microtopographical relationship [49].…”
Section: Paleoclimatic Significancementioning
confidence: 99%
“…Terrestrial rocks representing the drier end of this spectrum include vertic paleosols, often calcic. Studies of modern vertic soils (Nordt et al, 2006) indicate that carbonate will begin to form at relatively high mean annual rainfall amounts near 1400 mm, seasonality being key (mainly semi-arid to subhumid climates). On the wet end of terrestrial rocks are paleosols such as paleo-Spodosols, Ultisols, and Oxisols, recording humid to perhumid conditions (Cecil et al, 2003a).…”
Section: Climatic Framework and Drivers During The Pennsylvanianmentioning
confidence: 99%
“…Reaction is slightly acidic in surface horizons of microlows above 1250 mm of MAP. All subsoils at varying depths are alkaline (Nordt et al, 2006). In sum, the Victoria series is classified as Sodic Haplusterts, the Laewest and Lake Charles as Typic Hapluderts, and the League as Oxyaquic Dystruderts.…”
Section: Setting and Methodsmentioning
confidence: 99%
“…In turn, these unique properties and affiliated wetness conditions present numerous agricultural and engineering challenges worldwide (Dudal and Eswaran, 1988;Coulombe et al, 1996;Nordt et al, 2004). Determining the duration of saturation needed to induce anaerobic conditions has been controversial, leading to the recognition of Vertisols as one of the problem soils for identifying either taxonomicallydefined aquic soil moisture regimes or hydric soils as a criterion for identifying jurisdictional wetlands (Comerma, 1985;Griffin, 1991;Jacob et al, 1997).…”
Section: Introductionmentioning
confidence: 99%