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The youngest volcanic features in the Mono Basin are rhyolite flows on Paoha Island, which erupted between 1720 and 1850 C.E. The outer ring of the dome is circumnavigable by way of the rim trail, a longer trail in soft sand. The most recent advance, called the Matthes glaciation in the Sierra Nevada, occurred during the Little Ice Age, between about 1350 C.E. The Mono-Inyo chain is a north-trending chain of volcanic vents that, with a couple of exceptions, generally get younger from south to north, suggesting a northward propagation of the fissures and the magma system that feeds it. The Great Basin lakes, including Mono, are much smaller today than they were during wetter periods. Geology Underfoot in Yosemite National Park, by Allen F. Glazner and Greg M. Stock, Roadside Geology of Northern and Central California, by David D. Alt and Donald Hyndman, Geology of the Sierra Nevada, by Mary Hill, Geologic map of the Long Valley Caldera, Mono-Inyo Craters volcanic chain, and vicinity, eastern California, by Roy Bailey, Quaternary history of the Mono Valley, California, by Israel Russell. “Lake Russell” is the name used for Mono Lake when it was larger and the water was fresher. Panum is a classic example of the rhyolitic eruptions that characterize the Mono-Inyo chain. A strenuous but rewarding four-mile (round trip) hike to the top of Reversed Peak offers spectacular views of the whole Mono Basin and a particularly good look at the glacial geology of the June Lake Loop and Grant Lake Reservoir moraines from above. Equilibrium and nonequilibrium oxygen isotope effects in synthetic carbonates. Correlation of late-Pleistocene lake-level oscillations in Mono Lake, California, with North Atlantic climate events. This pull to the northwest initiated the San Andreas Fault, which allows the Pacific Plate to slide past the North American Plate at a transform boundary, without subducting along the California coast. This pull to the northwest initiated the San Andreas Fault, which allows the Pacific Plate to slide past the North American Plate at a transform boundary, without subducting along the California coast. “Lake Russell” is the name used for Mono Lake when it was larger and the water was fresher. At several times during the past 3 million years or so, Lake Russell had an outlet, first to the north into the Walker River system and later to the southeast to Adobe Valley and the Owens River system. Moraines are giant piles of loose sand, cobbles, and boulders that are deposited beneath and around the edges of glaciers. Learn more about tufa at Mono Lake. 6H2O: Cold comfort for glendonites as paleothermometers. Long Valley Caldera is unlikely to produce more eruptions; the subsurface heat and hydrothermal system that feeds Hot Creek Geologic Site, for example, is probably the tailing end of the volcano’s activity. Geologists map moraines and their complex ridges in order to understand the various glacial periods that formed the landscapes we see in the Sierra Nevada and elsewhere. 1. d18O in lake sediments as proxy for climatic change during the last 150 years. Recent seismic activity along the eastern part of the basin during the spring and summer of 2020 is evidence that the region is still tectonically active. (760) 647-6595 Retrieved January 12, 2014. Tufa is calcium carbonate—the same stuff as limestone or travertine—that formed underwater where freshwater springs mix with the alkaline lake water. Tufa is calcium carbonate—the same stuff as limestone or travertine—that formed underwater where freshwater springs mix with the alkaline lake water. Take a leisurely walk through tufa towers along the shore of Mono Lake. At those times, ice would have completely filled the canyons and spilled out into the Mono Basin. The big picture: Tectonics of the Eastern Sierra, Shaped by fire and ice: Young volcanic activity and glaciation, Roadside Geology of Northern and Central California, Geologic map of the Long Valley Caldera, Mono-Inyo Craters volcanic chain, and vicinity, eastern California. Newton, M. S. (1994). The Mono Lake Committee is a non-profit 501(c)(3) organization, tax ID number 77-0051124. The bathymetry of Mono Lake also shows that there are four or five features near Paoha Island that may be a small cluster of underwater vents. P.O. The pulling apart of the Basin and Range Province—like opening an accordion—has created a series of mountains and valleys that is the defining feature of this part of the western US. Box 29 The largest moraines in the Mono Basin, like those around the Grant Lake outlet, Bloody Canyon, and Lee Vining Canyon, were mostly formed during the Tahoe glaciation, which peaked about 50,000 years ago, and the Tioga glaciation, which peaked around 20,000 years ago. Take a leisurely walk through tufa towers along the shore of Mono Lake. [email protected]. Panum is a classic example of the rhyolitic eruptions that characterize the Mono-Inyo chain. Sweeney, Mike (July 19, 2011). "Don't Know What You Got ('Till It's Gone)". The motion gets distributed around the Sierra Nevada and pulls a big chunk of western North America along with it, creating a wide zone of extension called the Basin and Range Province. There is also a shorter trail that climbs to the top of the plug dome, which offers spectacular vistas of the Sierra Nevada and the entire Mono Basin. There are two other major volcanic systems in the region—Long Valley Caldera and the Mammoth Mountain volcanic field—but each of these volcanic fields appears to be a separate system, with geochemical characteristics distinct from the others. Recent seismic activity along the eastern part of the basin during the spring and summer of 2020 is evidence that the region is still tectonically active. The Sierra Nevada has been glaciated repeatedly over the past three million years or so. Benson, L. V., Lund, S. P., Burdett, J. W., Kashgarian, M., Rose, T. P., Smoot, J. P., & Schwartz, M. (1998). Learn how we use cookies on our Privacy and Cookies Policy page. The Farallon Plate, a thin plate made of cold, dense rock, collided with the North American Plate and was forced to subduct beneath North America. The outer ring of the dome is circumnavigable by way of the rim trail, a longer trail in soft sand. The northward motion of the Pacific Plate moves more than just the San Andreas Fault, though. Tours of Panum Crater are offered regularly in the summer. The Mono Basin lies at the complex transition area between two major geologic regions: the North American Western Cordillera (which includes the North American Plate boundary and Sierra Nevada) and the Basin and Range physiographic province. Mono is an infectious disease that can be spread through bodily fluids. The Mono Craters will likely produce more eruptions in the future, though it seems to be in a dormant phase currently. (760) 647-6595 In 1941 Los Angeles began diverting water from Mono lake to meet the needs of its growing population. Talbot, M. R. (1990). Li., H.-C., Ku, T.-L., Stott, L. D. and Anderson, R. F. (1997). it is part of the water system in Rome, just like the tap water that flows into people's homes Does mono come back? Benson, L. V., Currey, D. R., Dorn, R. I., Lajoie, K. R., Oviatt, C. G., Robinson, S. W., Smith, G. I., & Stine, S. (1990). The Basin and Range Province largely coincides with the Great Basin, a vast area of the western US that is internally drained: none of its rivers reach the ocean. The collision of the North American Plate with oceanic crust—the Farallon Plate and later the Pacific Plate—is what caused the formation of the Sierra Nevada mountain range. Other, shorter or warmer glacial periods since the Tahoe and Tioga glaciations have left smaller ridges and deposits plastered onto the sides of these large moraines. The most recent advance, called the Matthes glaciation in the Sierra Nevada, occurred during the Little Ice Age, between about 1350 C.E. As the Farallon Plate sank into the mantle, it contributed to melting in the subduction zone, and the buoyant blobs of melt rose back up through the crust, forming the granite rock called the Sierra Nevada batholith. The Great Basin lakes, including Mono, are much smaller today than they were during wetter periods. Tectonic activity—the movement of plates of Earth’s crust—is key to understanding the big-picture setting of the Mono Basin. The largest moraines in the Mono Basin, like those around the Grant Lake outlet, Bloody Canyon, and Lee Vining Canyon, were mostly formed during the Tahoe glaciation, which peaked about 50,000 years ago, and the Tioga glaciation, which peaked around 20,000 years ago. The only way for water to leave Mono Lake is through evaporation. The collision of the North American Plate with oceanic crust—the Farallon Plate and later the Pacific Plate—is what caused the formation of the Sierra Nevada mountain range. The youngest volcanic features in the Mono Basin are Paoha and Negit Islands, where a couple of small rhyolitic lava flows erupted around 1850 C.E. The motion gets distributed around the Sierra Nevada and pulls a big chunk of western North America along with it, creating a wide zone of extension called the Basin and Range Province. The Basin and Range Province largely coincides with the Great Basin, a vast area of the western US that is internally drained: none of its rivers reach the ocean. The Mono Basin began to form about 2.5 million years ago. Mammoth Mountain is still active, though, as is the Mono-Inyo Craters volcanic chain. The youngest volcanic features in the Mono Basin are rhyolite flows on Paoha Island, which erupted between 1720 and 1850 C.E. Holocene fluctuations of Mono Lake, California: the sedimentary record. How Wish You Were Here Went Up In Flames", "World Lake Database entry for Mono Lake", Roadside Geology and Mining History of the Owens Valley and Mono Basin, https://en.wikipedia.org/w/index.php?title=Mono_Lake&oldid=986279510, Tourist attractions in Mono County, California, Articles using infobox body of water without alt, Articles using infobox body of water without image bathymetry, Pages using multiple image with auto scaled images, Wikipedia articles needing clarification from May 2019, All Wikipedia articles needing clarification, Wikipedia articles with WORLDCATID identifiers, Creative Commons Attribution-ShareAlike License, Lithoid tufa - massive and porous with a rock-like appearance, Dendritic tufa - branching structures that look similar to small shrubs, Thinolitic tufa - large well-formed crystals of several centimeters, This page was last edited on 30 October 2020, at 21:38.

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