Impact of Grassland Radiation on the Nonmarine Silica Cycle and Miocene Diatomite

@inproceedings{Kidder2005ImpactOG,
  title={Impact of Grassland Radiation on the Nonmarine Silica Cycle and Miocene Diatomite},
  author={David L. Kidder and Elizabeth H. Gierlowski-Kordesch},
  year={2005}
}
Abstract The Early Miocene rise of the grass-dominated ecosystem is a plausible trigger for a sharp Miocene increase in accumulation of nonmarine diatomaceous sediment as well as diversification of nonmarine diatoms. This grassland radiation introduced a biogeochemical mechanism for enhancing widespread and sustained mobilization of usable silica and other nutrients. Volcanism was probably responsible for episodic nonmarine diatomaceous sediments from the advent of the oldest known nonmarine… 

The turnover of continental planktonic diatoms near the middle/late Miocene boundary and their Cenozoic evolution

TLDR
The turnover from nonmarine Actinocyclus to Stephanodiscaceae genera near the middle/late Miocene boundary may be linked to a contemporaneous increase in silica concentrations in lakes caused by active volcanism, increased weathering of silicate rocks due to orogeny, and the expansion of C4 grasslands.

EARLY FRESHWATER DIATOMS FROM THE UPPER CRETACEOUS BATTLE FORMATION IN WESTERN CANADA

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Poaceae (the grass family) originated in the Cretaceous, but first dominate the palynological records of the Amazon drainage basin (ADB) in the Neogene (23 to 2.5 million years ago (Ma)). However,

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