User:Sharonnsylva/sandbox

Phylogenetic diversity can help to determine how an organism can affect the function and stability of an ecosystem.

Chilcotin River
Please note: this is meant to be added to the first section of the current Wikipedia page, Chilcotin River.

Formation
Rocks that form the valley walls suggest that the southward course of the Chilcotin River may have formed during the Late Miocene or Pliocene epochs. The lower reach of the Chilcotin River is home to the Wineglass assemblage and sedimentary rocks, all of which are enclosed by overthrust rocks from the Cache Creek terrane. The assemblage is made up of Late Permian tonalitic rock cut through Late Permian volcanic rock which consists of a lower basalt unit and an upper rhyolite, basalt, felsic volcaniclastic rock unit with an intrusive body composed of tonalite, quartz diorite, and granodiorite. The identification of this Wineglass assemblage provides evidence that a relationship could exist with the Kutcho assemblage in Northern British Columbia. The two assemblages share similar lithology, an unconformity overlain with sedimentary sequences from the Triassic-Jurassic Periods, and a structural relationship with the overlying Cache Creek Complex.

Flooding
In July 2019, the Chilcotin River and surrounding communities were inundated with rainfall. Due to flooding, mudslides occurred, roadways were under water and culverts were destroyed. Residents were cut off, leaving over 300 people stranded and 120 properties destroyed.