%0 Journal Article %1 Ivanov2003 %A Ivanov, B. A. %A Melosh, H. J. %D 2003 %J Geology %K CHICXULUB; COLLAPSE; MANTLE; ROCK TEMPERATURE; %N 10 %P 869--872 %T Impacts do not initiate volcanic eruptions: Eruptions close to the crater %V 31 %X Many papers on meteorite impact suggest that large impacts can induce volcanic eruptions through decompression melting of the underlying rocks. We perform numerical simulations of the impact of an asteroid with a diameter of 20 km striking at 15 km(.)s(-1) into a target with a near-surface temperature gradient of 13 K(.)km(-1) ("cold" case) or 3 K(.)km(-1) ("hot" case). The impact creates a 250-300-km-diameter crater with similar to10,000 km(3) of impact melt. However, the crater collapses almost flat, and the pressure field returns almost to the initial lithostat. Even an impact this large cannot raise mantle material above the peridotite solidus by decompression. Statistical considerations also suggest that impacts cannot be the common initiator of large igneous provinces any time in post-heavy bombardment Earth history.

@article{Ivanov2003, abstract = {Many papers on meteorite impact suggest that large impacts can induce volcanic eruptions through decompression melting of the underlying rocks. We perform numerical simulations of the impact of an asteroid with a diameter of 20 km striking at 15 km(.)s(-1) into a target with a near-surface temperature gradient of 13 K(.)km(-1) ("cold" case) or 3 K(.)km(-1) ("hot" case). The impact creates a 250-300-km-diameter crater with similar to10,000 km(3) of impact melt. However, the crater collapses almost flat, and the pressure field returns almost to the initial lithostat. Even an impact this large cannot raise mantle material above the peridotite solidus by decompression. Statistical considerations also suggest that impacts cannot be the common initiator of large igneous provinces any time in post-heavy bombardment Earth history.}, added-at = {2009-11-03T20:21:25.000+0100}, author = {Ivanov, B. A. and Melosh, H. J.}, biburl = {https://www.bibsonomy.org/bibtex/2f47615ea400324d67977fca1059daeb0/svance}, citedreferences = {AHRENS TJ, 1977, IMPACT EXPLOSION CRA, P639 ; AMSDEN AA, 1980, SALE SIMPLIFIED ALE ; BALDWIN RB, 1963, MEASURE MOON ; BENZ W, 1989, Icarus, V81, P113 ; COFFIN MF, 2001, GEOLOGICAL SOC AM SP, V352, P59 ; COLLINS GS, 2002, Icarus, V157, P24 ; CRUMPLER LS, 1994, 25 LUN PLAN SCI C HO, P303 ; ELDHOLM O, 2000, AM GEOPHYSICAL UNION, V121, P309 ; ELKINSTANTON LT, 2002, MAGMATIC EFFECTS LUN ; GLICKSON AY, 1999, Geology, V27, P387 ; GRIEVE R, 2000, ANNU REV EARTH PL SC, V28, P305 ; GRIEVE RAF, 1992, METEORITICS, V27, P526 ; HERZBERG C, 1995, ROCK PHYSICS PHASE R, V3, P166 ; IVANOV BA, 2001, CHRONOLOGY EVOLUTION, P87 ; JEANLOZ R, 1986, ANNU REV EARTH PL SC, V14, P377 ; JONES AP, 2002, EARTH PLANET SC LETT, V202, P551 ; JONES AP, 2003, IMPACT STUD, P91 ; MAGEE KP, 2001, GEOLOGICAL SOC AM SP, V352, P81 ; MCKENZIE DP, 1988, J PETROL, V29, P625 ; MELOSH HJ, 1999, ANNU REV EARTH PL SC, V27, P385 ; NEUKUM G, 2001, CHRONOLOGY EVOLUTION, P55 ; OHNAKA M, 1995, GEOPHYS RES LETT, V22, P25 ; PIERAZZO E, 1997, Icarus, V127, P408 ; RAMPINO MR, 1987, Nature, V327, P468 ; RIBE NM, 1995, EARTH PLANET SC LETT, V134, P155 ; ROGERS GC, 1982, Nature, V299, P341 ; RONCA LB, 1966, Icarus, V5, P515 ; RYDER G, 1994, GEOL SOC AM SPEC PAP, V293, P11 ; SCHAFER A, 1992, J CHEM PHYS, V97, P257 ; STEFANICK M, 1984, J GEOPHYS RES, V89, P9919 ; STESKY RM, 1974, TECTONOPHYSICS, V23, P177 ; STOFFLER D, 2001, CHRONOLOGY EVOLUTION, P9 ; Turcotte DL, 1982, GEODYNAMICS APPL CON ; WILHELMS DE, 1987, 1348 US GEOL SURV}, interhash = {19a25c18dbfee17b9f5e5f7dbf863c6c}, intrahash = {f47615ea400324d67977fca1059daeb0}, journal = {Geology}, keywords = {CHICXULUB; COLLAPSE; MANTLE; ROCK TEMPERATURE;}, number = 10, owner = {svance}, pages = {869--872}, timestamp = {2009-11-03T20:21:52.000+0100}, title = {Impacts do not initiate volcanic eruptions: Eruptions close to the crater}, volume = 31, year = 2003 }