2005
DOI: 10.2110/palo.2003.p03-108
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Impact of Grassland Radiation on the Nonmarine Silica Cycle and Miocene Diatomite

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Cited by 43 publications
(30 citation statements)
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“…Expansion of grasses in the Early Miocene coincided with the origin of high-crowned teeth in grazing ungulates, which is assumed to be driven by the consumption of abrasive, silica-rich phytoliths in their grass forage [51]. Massive accumulation of phytoliths in grassland systems has been considered to act as a key player to drive Miocene diatomite abundance and diversity in non-marine [51] and even marine sediment records [52]. It was assumed that phytoliths were mobilized from grassland soils through wind, fire, run-off and/or dissolution to groundwater.…”
Section: (C) Implicationsmentioning
confidence: 99%
“…Expansion of grasses in the Early Miocene coincided with the origin of high-crowned teeth in grazing ungulates, which is assumed to be driven by the consumption of abrasive, silica-rich phytoliths in their grass forage [51]. Massive accumulation of phytoliths in grassland systems has been considered to act as a key player to drive Miocene diatomite abundance and diversity in non-marine [51] and even marine sediment records [52]. It was assumed that phytoliths were mobilized from grassland soils through wind, fire, run-off and/or dissolution to groundwater.…”
Section: (C) Implicationsmentioning
confidence: 99%
“…Of greater interest however is the belowground store of biogenic Si, which comprises roughly 130 Tmol of Si. Measurements of other grassland systems (savannah, shrubland, and tundra, which comprise an additional 9,520,000 km 2 [ White et al , 2000] would further refine the role of grasslands in the global biogeochemical Si cycle and the concomitant rise of grasslands and diatomaceous marine deposits associated with the late Miocene [ Kidder and Gierlowski‐Kordesch , 2005].…”
Section: Potential Significance Of Grasslands In Global Si Biogeochemmentioning
confidence: 99%
“…Vegetation structure is a fundamental determinant of ecosystem function, both at the local scale (e.g., primary productivity, soil-water relations, and faunal ecological diversity; Monsi and Saeki, 2005;Gibson, 2009;Travouillon and Legendre, 2009) and at regional to global scales, through variable albedo, carbon storage, and geochemical cycles (Giambelluca et al, 1997;Sage, 2004;Kidder and Gierlowski-Kordesch, 2005). Knowledge of vegetation structure is therefore vital for understanding the ways in which ecosystems respond to major environmental perturbations, in the past, as well as in the future.…”
Section: Introductionmentioning
confidence: 99%