Correlation of the Deccan and Rajahmundry Trap lavas: Are these the longest and largest lava flows on Earth?

Self, Stephen; Jay, A. E.; Widdowson, Mike; Keszthelyi, L.

doi:10.1016/j.jvolgeores.2006.11.012

Cited by 126 publications

(91 citation statements)

References 48 publications

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“…A distinctive feature of LIPs, including the Siberian Traps, is the dispersal of magmas over long distances with individual lavas extending over 1000 km (Self et al, 2008;Ernst, 2014). Whether lavas were fed from a single source travelling subaerial or through magma transport at depth and fed through multiple vertical dyke systems remains open (Elliot and Fleming, 2004).…”

Section: Correlating Taimyr and Siberian Traps Volcanic Unitsmentioning

confidence: 99%

Petrogenesis and timing of mafic magmatism, South Taimyr, Arctic Siberia: A northerly continuation of the Siberian Traps?

Reichow

Saunders

Scott

et al. 2016

Lithos

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The Siberian large igneous province (LIP) forms the world's most extensive continental exposure of basalt and has several sub-provinces surrounding it, which may be genetically related. The Taimyr peninsula of north Siberia is one of these sub-provinces and is frequently assumed to be the northerly continuation of the basalts exposed at Noril'sk, the best-studied area of the Siberian LIP. However, the correlation is uncertain. The major and trace element data for both groups are consistent with a process of fractional crystallisation coupled with small degrees of assimilation of incompatibleelement-enriched lower crust involving different contaminants. Trace element model calculations indicate a process of magma formation at large degrees of partial melting and at pressures of less than 3 GPa, probably within the garnet-spinel transition zone or the spinel stability field of the asthenospheric mantle. We obtained an argon plateau age of ~252 (252.7 ± 1.5) Ma and a ~239 Ma total fusion age from a Taimyr lava and intrusive sample, respectively, confirming that volcanism is only partly contemporaneous with the activity of the Siberian LIP. Although this is in agreement with previous interpretations, we argue that the age difference between both events is only ~13 myrs and probably less (~5 myrs) although further investigation of the relationship is required. Our data allow correlation with distinct Noril'sk members and most importantly to the ore-bearing (Ni-Cu) intrusions implying that whole rock chemistry could have value as a prospecting tool in Taimyr.

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Section: Correlating Taimyr and Siberian Traps Volcanic Unitsmentioning

confidence: 99%

Petrogenesis and timing of mafic magmatism, South Taimyr, Arctic Siberia: A northerly continuation of the Siberian Traps?

Reichow

Saunders

Scott

et al. 2016

Lithos

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“…Studies focused on lava flow emplacement dynamics can help volcanologists understand and predict the kinematics of lava flows (e.g. Peterson & Tilling, 1980;Kilburn, 1990;Kilburn, Pinkerton & Wilson, 1995;Polacci & Papale, 1997;Self, Keszthelyi & Thordason, 1998;Self et al 2008;Cashman, Thornber & Kauahikaua, 1999;Guest & Stofan, 2005). Estimates of lava velocity, direction and extent can aid in hazard mitigation.…”

Section: Introductionmentioning

confidence: 99%

Morphology and structure of the 1999 lava flows at Mount Cameroon Volcano (West Africa) and their bearing on the emplacement dynamics of volume-limited flows

et al. 2010

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-The morphology and structure of the 1999 lava flows at Mount Cameroon volcano are documented and discussed in relation to local and source dynamics. Structures are analysed qualitatively and more detailed arguments are developed on the processes of levee formation and systematic links between flow dynamics and levee-channel interface geometry. The flows have clear channels bordered by four main types of levees: initial, accretionary, rubble and overflow levees. Thermally immature pahoehoe lava units with overflow drapes define the proximal zone, whereas rubble and accretionary levees are common in the distal region bordering thermally mature aa clinker or blocky aa flow channels. Pressure ridges, squeeze-ups and pahoehoe ropes are the prevalent compressive structures. Standlines displayed on clinkery breccias are interpreted to represent leveechannel interactions in response to changing flow levels. These data complement previous knowledge on lava flow morphology, thus far dominated by Etnean and Hawaiian examples.

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“…T he formation of large igneous provinces (LIPs) represents one of the most extreme volcanic events on Earth, characterized through eruption of vast amounts of lava in a geologically short period 1 . Oceanic LIPs either accrete and obduct, adding to the continental landmass [2][3][4] or in rare cases recycle back into the Earth's mantle via subduction.…”

mentioning

confidence: 99%

Subduction of the oceanic Hikurangi Plateau and its impact on the Kermadec arc

et al. 2014

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Large igneous province subduction is a rare process on Earth. A modern example is the subduction of the oceanic Hikurangi Plateau beneath the southern Kermadec arc, offshore New Zealand. This segment of the arc has the largest total lava volume erupted and the highest volcano density of the entire Kermadec arc. Here we show that Kermadec arc lavas south of B32°S have elevated Pb and Sr and low Nd isotope ratios, which argues, together with increasing seafloor depth, forearc retreat and crustal thinning, for initial Hikurangi Plateau-Kermadec arc collision B250 km north of its present position. The combined data set indicates that a much larger portion of the Hikurangi Plateau (the missing Ontong Java Nui piece) than previously believed has already been subducted. Oblique plate convergence caused southward migration of the thickened and buoyant oceanic plateau crust, creating a buoyant 'Hikurangi' mélange beneath the Moho that interacts with ascending arc melts.

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Correlation of the Deccan and Rajahmundry Trap lavas: Are these the longest and largest lava flows on Earth?

Cited by 126 publications

References 48 publications

Petrogenesis and timing of mafic magmatism, South Taimyr, Arctic Siberia: A northerly continuation of the Siberian Traps?

Petrogenesis and timing of mafic magmatism, South Taimyr, Arctic Siberia: A northerly continuation of the Siberian Traps?

Morphology and structure of the 1999 lava flows at Mount Cameroon Volcano (West Africa) and their bearing on the emplacement dynamics of volume-limited flows

Subduction of the oceanic Hikurangi Plateau and its impact on the Kermadec arc

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