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- Cheakamus_Valley_basalts abstract "The Cheakamus Valley basalts are a sequence of basaltic lava flows at the Cheakamus River in southwestern British Columbia, Canada. They are part of the Garibaldi section of the Cascade Volcanic Arc and were produced during an episode of volcanic eruptions from an unknown vent. The latest basaltic eruption deposited wood in lacustrine sediments under the lava flows that have been dated 34,200 ± 800 years old. These youngest lavas form isolated ridges above the older glaciated Cheakamus Valley basalts and were described as "esker-like" by Canadian volcanologist Bill Mathews. Columnar jointing is present all through the most recent basalt lava flow and pillow basalts exist in the lowermost unit, portions of which are underlain by hyaloclastite breccia. Bill Mathews suggested that these esker-like lava flows were deposited during subglacial eruptions that traveled away from the vent inside tunnels or trenches melted in the overlying ice sheet. Mathews based his suggestion on the age of the underlying till, the existence of pillow lava close to the bottom of some lavas that indicate subaqueous volcanism, horizontal jointing at the edges of the lavas that indicate rapid cooling, and the absence of apparent paleotopography to explain these features.".
- Cheakamus_Valley_basalts thumbnail BrandywineFalls_1200W.jpg?width=300.
- Cheakamus_Valley_basalts wikiPageID "25389048".
- Cheakamus_Valley_basalts wikiPageRevisionID "589648815".
- Cheakamus_Valley_basalts hasPhotoCollection Cheakamus_Valley_basalts.
- Cheakamus_Valley_basalts subject Category:Garibaldi_Volcanic_Belt.
- Cheakamus_Valley_basalts subject Category:Pacific_Ranges.
- Cheakamus_Valley_basalts subject Category:Pleistocene_volcanism.
- Cheakamus_Valley_basalts type Abstraction100002137.
- Cheakamus_Valley_basalts type Attribute100024264.
- Cheakamus_Valley_basalts type Extent105123416.
- Cheakamus_Valley_basalts type Magnitude105090441.
- Cheakamus_Valley_basalts type PacificRanges.
- Cheakamus_Valley_basalts type Property104916342.
- Cheakamus_Valley_basalts type Scope105125377.
- Cheakamus_Valley_basalts comment "The Cheakamus Valley basalts are a sequence of basaltic lava flows at the Cheakamus River in southwestern British Columbia, Canada. They are part of the Garibaldi section of the Cascade Volcanic Arc and were produced during an episode of volcanic eruptions from an unknown vent. The latest basaltic eruption deposited wood in lacustrine sediments under the lava flows that have been dated 34,200 ± 800 years old.".
- Cheakamus_Valley_basalts label "Cheakamus Valley basalts".
- Cheakamus_Valley_basalts sameAs m.09k4ryb.
- Cheakamus_Valley_basalts sameAs Q5088823.
- Cheakamus_Valley_basalts sameAs Q5088823.
- Cheakamus_Valley_basalts sameAs Cheakamus_Valley_basalts.
- Cheakamus_Valley_basalts wasDerivedFrom Cheakamus_Valley_basalts?oldid=589648815.
- Cheakamus_Valley_basalts depiction BrandywineFalls_1200W.jpg.
- Cheakamus_Valley_basalts isPrimaryTopicOf Cheakamus_Valley_basalts.
