Magmatology of Mt. Pelée (Martinique, F.W.I.). II: petrology of gabbroic and dioritic cumulates

Fichaut, Michèle; Marcelot, G.; Clocchiatti, R.

doi:10.1016/0377-0273(89)90036-x

Cited by 18 publications

(32 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rainier might have extra plagiocalse derived from the Tatoosh Pluton (-10% of the source area; Fiske et al, 1963), and sand from Mt. Pelée might have extra plagioclase derived from plutonic xenoliths (Lacroix, 1904, Westercamp, 1976Fichaut et al, 1989;Smith and Roobol, 1990).…”

Section: Implications For Previous and Future Researchmentioning

confidence: 99%

Source rock texture versus climate and topography as controls on the composition of modern, plutoniclastic sand

Heins

1993

Processes Controlling the Composition of Clastic Sediments

View full text Add to dashboard Cite

The rock fragment content (measured by log of polycrystalline/monocrystalline sand grains) of sand derived from five nearly identical granodiorite plutons, located in strongly contrasting climatic zones of the United States and Mexico, shows a much stronger correlation with source rock texture than with any environmental factor or combination of factors. These factors include mean annual temperature (range, -4° to 28°C), mean annual precipitation range (range, 201 to 1,566 mm), mean annual surplus of precipitation over évapotranspiration (range, 0 to 1,138 mm), average drainage slope (range, 0.29 to 0.61), or relief ratio (range, 0.17 to 0.70). Source rock texture is measured by intercrystalline area/volume of source rock and has a range of 7.99 to 25.08 mm -1 . Stepwise regression analysis indicates that, in coarse sand, 71% of variation in rock fragment content is accounted for by variations in source rock texture versus 16% accounted for by variations in temperature. In medium sand, 96% of the variation in rock fragment content can be attributed to texture versus 1% for slope and <1% for temperature. In fine sand, 92% of the variation in rock fragment content stems from texture versus 3% from temperature. The same analysis does not document a statistically significant relationship between precipitation and rock fragment abundance. Many previous studies that appear to document a relationship between rock fragment abundance and precipitation in modern and ancient sand have not accounted for variations in source rock lithology that are more plausible explanations for observed variations in rock fragment abundance in derived sand.

show abstract

Section: Implications For Previous and Future Researchmentioning

confidence: 99%

Source rock texture versus climate and topography as controls on the composition of modern, plutoniclastic sand

Heins

1993

Processes Controlling the Composition of Clastic Sediments

View full text Add to dashboard Cite

show abstract

“…We also make a brief comparison to the Mt Pelée products where the 113 processes responsible for generating the andesitic compositions are well constrained (e.g. Dupuy et al, 114 1985;Fichaut et al, 1989a;Pichavant et al, 2002). 115…”

mentioning

confidence: 99%

“…In particular, the key observation is that the bulk 599 rock FeO content of both andesite and enclave appear to be coupled. Both andesites and enclaves from 600 Phases I and II show higher major element oxide contents apart from SiO 2, and more scatter at similar 601 The volcanic stratigraphy and petrology of Mt Pelée, is well constrained and the physical evolution of the 612 plumbing system through time has been modeled (Fichaut et al, 1989a). It has been established that the 613 current shallow reservoir is zoned (Dupuy et al, 1985, Pichavant et al, 2002 and is relatively small (< 614 1km…”

mentioning

confidence: 99%

See 1 more Smart Citation

Chapter 17 Petrological and geochemical variation during the Soufrière Hills eruption, 1995 to 2010

Christopher

Humphreys

Barclay

et al. 2014

Memoirs

View full text Add to dashboard Cite

Citation for published item:ghristopherD F nd rumphreysD wFgFF nd frlyD tF nd qenreuD uF nd he engelisD FwFrF nd lilD wF nd honovnD eF @PHIRA 9etrologil nd geohemil vrition during the oufri ere rills eruptionD IWWS to PHIHF9D wemoirsFD QW F ppF QIUEQRPF Further information on publisher's website: he iruption of oufri ere rills olnoD wontserrt from PHHH to PHIHF ghpter IUF Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACT 22The andesite lava erupted at the Soufrière Hills Volcano is crystal rich with 33-63% phenocrysts, of 23 plagioclase (65%); amphibole (28%), orthopyroxene (7%) and minor Fe-Ti oxide and clinopyroxene 24 microphenocrysts. The andesite hosts mafic enclaves which have similar mineral phases to the andesite. 25The enclaves are generally crystal poor but can have up to 27% of inherited phenocrysts from the 26 andesite, the majority of which are plagioclase. The eruption is defined by discrete periods of extrusion 27 called phases, separated by pauses. The enclaves exhibit bulk geochemical trends that are consistent with 28 fractionation. We infer that the intruded mafic liquids of Phases I and II interacted and assimilated 29 plutonic residue remaining from the multiple prior mafic intrusions, while the basaltic liquids from Phases 30 III and V assimilated relatively little material. We also infer a change in the basaltic composition coming 31 from depth. The bulk Fe contents of both magma types are coupled and they both show a systematic inter-32 phase variation in Fe content. We interpret the coupled Fe variation to be due to contamination of the 33 andesite from the intruding basalt via diffusion and advection processes, resulting in the erupted andesite 34 products bearing the geochemical imprint of the syn-eruptive enclaves. 35 36The Soufrière Hills volcano is an andesitic dome complex located on the island of Montserrat in the 37Lesser Antilles arc. The present eruption began on the evening of July 18 th 1995 with ash venting 38 followed by phreatic explosions over the next weeks and months Robertson et al., 39 2000). Juvenile material arrived at the surface around November 15 th 1995 (Herd et al., 2005). The volcanic activity of Phase I is described in detail 49elsewhere (e.g. Miller et al., 1998;Calder et al., 2002; Norton et 50 al., 2002) (Herd et al., 2005). This resulted in the construction 55 of a larger volume dome than any extruded during Phase I. Dome collapses were less frequent than during 56Phase I but involved larger volumes, culminating in the largest volume collapse of the...

show abstract

“…Gabbroic xenoliths are fairly common among subduction zone volcanoes (some examples include Volcin Calbuco, Chile, Hickey-Vargas et al, 1995 andHickey-Vargas, 2004;Volcin San Pedro, Chile, Costa et al, 2002;Mt. Pel6e, Lesser Antilles, Pichavant et al, 2002 andFichaut et al, 1989;Mt. St. Helens, Cascades, Medicine Lake, California, Arenal, Costa Rica, Costa et al, 2002; and several localities in Japan, Yagi andTakeshita, 1987 andCosta et al, 2002).…”

Section: 3d Gabbroic Xenolithsmentioning

confidence: 99%

Determining magmatic processes from analysis of phenocrysts and gabbroic xenoliths contained in Calbuco andesites

Horst¹

View full text Add to dashboard Cite

Magmatology of Mt. Pelée (Martinique, F.W.I.). II: petrology of gabbroic and dioritic cumulates

Cited by 18 publications

References 27 publications

Source rock texture versus climate and topography as controls on the composition of modern, plutoniclastic sand

Source rock texture versus climate and topography as controls on the composition of modern, plutoniclastic sand

Chapter 17 Petrological and geochemical variation during the Soufrière Hills eruption, 1995 to 2010

Determining magmatic processes from analysis of phenocrysts and gabbroic xenoliths contained in Calbuco andesites

Contact Info

Product

Resources

About