| 词条 | Blue goo |
| 释义 |
Parent materialThe Franciscan Complex is the bedrock from which blue goo is derived.[1] It stretches along the coastline from Central California up to Southern Oregon and contains sheared materials from both the Pacific and North American Plates that have accumulated in the accretionary wedge.[1] The rock types that produce blue goo include: greenstones, cherts, basalts, shales, sandstones, schists, and serpenitites.[1][2][4][5][6] These materials mixed together forming a "plum pudding" or a mélange.[1][2] This mélange decomposed through weathering to form blue goo.[7] Common featuresClay soils like blue goo have the highest water-holding capacity when compared with other soils, giving them a low draining capacity.[3] This kind of habitat is unsuitable for most plants,[3] but the Northern California coastline maintains high levels of vegetation year round. Due to blue goo's clayey texture, it slips when overly saturated.[6] This slippage is increased in heavy rainfall areas and in shallow soils; deep soils have more total pore space and are not as prone to slippage.[3] These features contribute to the landslide-ridden environments found along the Northern Californian coast.[5][6] LocationsThe Franciscan Complex, from which blue goo is derived, extends from Central California up the coast through parts of Southern Oregon.[1] But blue goo has only been found in two Northern Californian regions located in Humboldt County: the Trinidad region and the Orick region. Blue goo is thought to also be found in the Eel River region and along the Southern Oregon coastline. References1. ^1 2 3 4 5 {{Cite journal|url =http://jsedres.geoscienceworld.org/content/46/4/913.abstract |title = Sedimentology of a Melange: Franciscan of Trinidad, California|last = Aalto|first = Ken R.|date = 1976|journal = Journal of Sedimentary Petrology|doi = 10.1306/212F7090-2B24-11D7-8648000102C1865D |pmid = |access-date = |volume = 46|issue = 4|pages = 913–929}} 2. ^1 2 3 4 {{Cite web|url = http://www2.humboldt.edu/geology/courses/geology109/akl_109_labs/2009_labs/109_lab_6_trinidad_ft.pdf|title = Trinidad Lab Manual|date = |accessdate = |website = |publisher = |last = Department of Geology. Humboldt State University.|first = }} 3. ^1 2 3 {{Cite book|title = The Nature and Properties of Soils|last = Brady|first = Nyle C.|publisher = Pearson-Prentice Hall|year = 2008|isbn = |location = Upper Saddle River, NJ|pages = 990|last2 = Weil|first2 = Ray R.|edition = 14}} 4. ^{{Cite web|title = Geology of Eel River Valley area, Humboldt County, California : Ogle, Burdette Adrian : Free Download & Streaming|url = https://archive.org/details/geologyofeelrive00oglerich|website = Internet Archive|accessdate = December 17, 2015}} 5. ^1 {{Cite journal|url = |title = Franciscan Geology at Patrick’s Point, California|last = Tula|first = Alex|date = 1972|journal = Senior Thesis. Department of Geology. Humboldt State University.|doi = |pmid = |access-date = }} 6. ^1 2 {{Cite journal|url = |title = Earthflow Movement Characteristics at Truttman Sink: A Franciscan Complex Mélange Coastal Headland|last = Gustason|first = Edmund R.|date = 1979|journal = Senior Thesis. Department of Geology. Humboldt State University.|doi = |pmid = |access-date = }} 7. ^{{Cite book |url =http://www2.humboldt.edu/natmus/get-outside/fossils/Geol-Fossil-Guide.pdf |title = Unearthing Evidence of Creatures from Deep Time: A Beginner's Fossil Guide to the Northern California Coast |last = Anderson |first = Leslie S. |date = 2011 |page=6 |publisher = Humboldt State University |doi = |pmid = |access-date = January 17, 2016 }} 2 : Clay|Geology of California |
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