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Salton Sea. The Salton Sea is a shallow, landlocked, highly saline endorheic lake in Riverside and Imperial counties at the southern end of the U.S. state of California. It lies on the San Andreas Fault within the Salton Trough, which stretches to the Gulf of California in Mexico.
Spacecraft cemetery. The spacecraft cemetery, known more formally as the South Pacific Ocean (ic) Uninhabited Area, [1][2] is a region in the southern Pacific Ocean east of New Zealand, [3] where spacecraft that have reached the end of their usefulness are routinely crashed. The area is roughly centered on "Point Nemo", the oceanic pole of ...
e. A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water, known as a shelf sea. Much of these shelves were exposed by drops in sea level during glacial periods. The shelf surrounding an island is known as an insular shelf. The continental margin, between the continental shelf and the abyssal ...
It communicates through the NASA Deep Space Network (DSN) to receive routine commands and to transmit data to Earth. Real-time distance and velocity data are provided by NASA and JPL. [4] At a distance of 164.0 AU (24.5 billion km; 15.2 billion mi) from Earth as of September 2024, [4] it is the most distant human-made object from Earth. [5]
Geological history. The oldest rocks in California date back 1.8 billion years to the Proterozoic and are found in the San Gabriel Mountains, San Bernardino Mountains, and Mojave Desert. The rocks of eastern California formed a shallow continental shelf, with massive deposition of limestone during the Paleozoic, and sediments from this time are ...
An artificial reef (AR) is a human-created freshwater or marine benthic structure. [1] Typically built in areas with a generally featureless bottom to promote marine life, it may be intended to control erosion, protect coastal areas, block ship passage, block the use of trawling nets, [2] support reef restoration, improve aquaculture, or enhance scuba diving and surfing. [3]
The Southern Ocean, also known as the Antarctic Ocean, [ 1 ][ note 4 ] comprises the southernmost waters of the world ocean, generally taken to be south of 60° S latitude and encircling Antarctica. [ 5 ] With a size of 20,327,000 km 2 (7,848,000 sq mi), it is the second-smallest of the five principal oceanic divisions, smaller than the Pacific ...
Gorda Ridge – Tectonic spreading center off the northern coast of California and southern Oregon; Juan de Fuca Ridge – Divergent plate boundary off the coast of the Pacific Northwest region of North America; South American–Antarctic Ridge – Mid-ocean ridge in the South Atlantic between the South American Plate and the Antarctic Plate