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[4]: 65 He named it laterite from the Latin word later, which means a brick; this highly compacted and cemented soil can easily be cut into brick-shaped blocks for building. [4]: 65 The word laterite has been used for variably cemented, sesquioxide-rich soil horizons. [5] A sesquioxide is an oxide with three atoms of oxygen and two metal atoms ...
The Coast Range Ophiolite is an ophiolite of Middle to Late Jurassic age located in the California Coast Ranges. The form the basement of the extreme western margin of central and northern California. Exposures straddle the coast from Santa Barbara County up to San Francisco.
The coast of California north of San Francisco contains the Northern California coastal forests (as defined by the WWF) and the southern section of the Coast Range ecoregion (as defined by the EPA). This ecoregion is dominated by redwood forest, containing the tallest and some of the oldest trees in the world. [22]
Northern California usually refers to the state's northernmost 48 counties. The main population centers of Northern California include San Francisco Bay Area (which includes the cities of San Francisco, Oakland, and the largest city of the region, San Jose), and Sacramento (the state capital) as well as its metropolitan area.
The San Francisco Estuary has a numerous sources of nutrients that can be used for primary production, derived largely from waste water treatment facilities, agricultural and urban drainage, and the ocean. [20] [21] In spite of this, the estuary is unique in that it tends to have a relatively depressed rate of primary production. [22]
A 2021 map showing how a tsunami could impact San Francisco was thrust back into the spotlight after a 2024 earthquake ... earthquake hit off the California coast. It led to 5 million people being ...
A map of the Los Angeles Basin's oil and gas fields Los Angeles City Oil Field in 1905. Accumulations of oil and gas occur almost wholly within strata of the younger sequence and in areas that are within or adjacent to the coastal belt. [1] The Puente formation has proved to be the most notable reservoir for petroleum in the basin. [21]
A Southern California coastal area long prone to landslides continues to inch toward the ocean at a rising speed posing danger to human life and infrastructure, a new NASA report shows.. The Palos ...