Large Igneous Provinces by Richard E. Ernst

By Richard E. Ernst

Huge igneous provinces (LIPs) are intraplate magmatic occasions, concerning volumes of customarily mafic magma upwards of 100,000 km3, and infrequently above 1 million km3. they're associated with continental break-up, worldwide environmental catastrophes, neighborhood uplift and various ore deposit varieties. during this updated, attention-grabbing booklet, best professional Richard E. Ernst explores all features of LIPs, starting by means of introducing their definition and crucial features. themes lined contain continental and oceanic LIPs; their origins, constructions, and geochemistry; geological and environmental results; organization with silicic, carbonatite and kimberlite magmatism; and analogues of LIPs within the Archean, and on different planets. The e-book concludes with an review of LIPs' impact on traditional assets comparable to mineral deposits, petroleum and aquifers. this can be a one-stop source for researchers and graduate scholars in a variety of disciplines, together with tectonics, igneous petrology, geochemistry, geophysics, Earth background, and planetary geology, and for mining execs.

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G. , 2007). 2 Essential attributes of LIPs 49 cases, the intraplate characteristics of the LIP event are based more on petrological and geochemical grounds (and other features such as melt production rates, if well constrained), where the LIP has compositions distinctly different from those formed at mid-ocean ridges and subduction zones. However, for continental LIPs, the frequent addition of lithospheric geochemical signatures to flood basalts and rhyolites makes recognition of an intraplate signature difficult (Chapter 10).

5) Yes No Yes Yes No ? No No ? No? No No No No ? 5 Link between LIPs, hotspot and seamount chains on background of distribution of continents. From Figure 4 in Storey (1995) based on original diagram from Duncan and Richards (1991). Digital version of original figure kindly provided by B. Storey. Generalized LIPs are in solid black. P¼ Parana´, E ¼ Etendeka, K ¼ Karoo, F ¼ Ferrar, D ¼ Deccan, Ra ¼ Rajmahal and Bu ¼ Bunbury (both part of Kerguelen–Bunbury–Comei LIP). Open circles are present day hotspots and dashed lines represent seamount chain connections between LIPs and present day hotspots through subsequent ocean opening.

Madagascar, NAIP ¼ North Atlantic Igneous Province, NW Aust. ¼ northwest Australia, P-E ¼ Parana´-Etendeka, SMO ¼ Sierra Madre Occidental, ST ¼ Siberian Trap, WA ¼ western Australia, Whit. ¼ Whitsunday. From Figure 3 in Bryan and Ernst (2008). With permission from Elsevier. , 2002; Jerram and Widdowson, 2005). Systematic dating combined with stratigraphic studies is lacking in the majority of SLIPs (see Chapter 8), meaning that it is unknown whether these events have welldefined, pulsed magmatic characters.

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