geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Contemporary uplift of the Sierra Nevada, western United States, from GPS and InSAR measurements


, : Contemporary uplift of the Sierra Nevada, western United States, from GPS and InSAR measurements. Geology 40(7): 667-670

Modern space geodesy has recently enabled the direct observation of slow geological processes that move and shape Earth’s surface, including plate tectonics and crustal strain accumulation that leads to earthquakes. More elusive has been the direct observation of active mountain growth, because geodetic measurements have larger uncertainties in the vertical direction, while mountain growth is typically very slow. For the Sierra Nevada of California and Nevada, western United States, the history of elevation is complex, exhibiting features of both ancient (4–6 Ma) and relatively young (<3 Ma) elevation. Here we exploit the complementary strengths of high-precision three-component point positions from the GPS and blanket coverage line-of-sight measurements from interferometric synthetic aperture radar (InSAR) to show that contemporary vertical motion of the Sierra Nevada is between 1 and 2 mm/yr. The motion is upward with respect to Earth’s center of mass and with respect to a relatively stable eastern Nevada, indicating generation of relief and uplift against gravity. Uplift is distributed along the entire length of the range, between latitude 35°N and 4°N, and is not focused near localized, seismically imaged mantle downwellings. These results indicate that the modern episode of Sierra Nevada uplift is still active and could have generated the entire modern range in <3 m.y.

US$19.90

DOI: 10.1130/g32968.1


Other references

Quintero Betancourt, W.; Rose, J.; Huffman, D.; Farrah, S.; Lukasick, J.; Scott, T., 2001: Water quality of deep injection monitoring wells in Florida. The Underground Injection Control (UIC) Program of the United States Environmental Protection Agency (USEPA) works with state and local governments to regulate injection wells in order to prevent them from contaminating drinking water resources. E...

Kingsbury, M., 1979: Budget model applications. Topics in Health Care Financing 5(4): 95-105

Holland, I.B.; Darby, V., 1976: Genetical and physiological studies on a thermosensitive mutant of Escherichia coli defective in cell division. A new temperature-sensitive mutant of E. coli, defective in cell division, was isolated after selection for tolerance to colicin E2. The mutant strain, ASHI24, growing in either minimal or complex medium, commences filament formation immediately u...

Koehn, J.D., 2015: Managing people, water, food and fish in the Murray–Darling Basin, south-eastern Australia. The Murray Darling Basin (MDB) covers 1.1 million km2, involves six legislative jurisdictions, a myriad of different agencies and illustrates the many complexities of managing fishes, people and water. Its rivers provide water for agriculture, are...

Uzuner, A.; Ilki, A.; Akman, M.; Gündoğdu, E.; Erbölükbaş, R.; Kokaçya, O.; Mengüç, Türkan.; Kalaça, S.; Söyletir, Güner., 2008: Nasopharyngeal carriage of penicillin-resistant Streptococcus pneumoniae in healthy children. Streptococcus pneumoniae carriage is a risk factor for the development of respiratory system infections and the spread of penicillin-resistant strains. The aim of this study was to investigate nasopharyngeal carriage of S. pneumoniae in healthy ch...

Paikne, D.L.; Purohit, B.L., 1970: Congenital unilateral hydronephrosis in lamb. Indian Veterinary Journal 47(9): 720-721

Elster, A.D.; Stark, P., 1985: Episternal ossicles: a normal CT variant. Rofo 143(2): 246-247

Wolosker, N.; Teivelis, M.Passos.; Krutman, M.; de Paula, R.P.; de Campos, Jé.R.M.; Kauffman, P.; Puech-Leão, P., 2015: Long-term results of oxybutynin treatment for palmar hyperhidrosis. Palmar hyperhidrosis (PH) is a common illness that significantly impacts Quality of Life (QOL). Oxybutynin offers excellent short-term results, but long-term follow-up results are limited. We evaluated its effectiveness in a large group of patient...

Duley, F.L., 1926: The loss of soluble salts in runoff water. Soil Science 21(5): 401-409

Stace, H.C.T.; Palm, A.W., 1962: A thin walled tube for core sampling of soils. A thin-walled steel tube is driven into the soil by a sliding weight arrangement. The tube with its enclosed core is extracted with a hydraulic jack. For a sampling program of either a large number of holes or very deep ones an electric hammer is...