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Download Peperite: Processes and Products of Magma-Sediment Mingling ePub

by I.P. Skilling,J.D.L. White,J. McPhie

Download Peperite: Processes and Products of Magma-Sediment Mingling ePub
  • ISBN 0444511601
  • ISBN13 978-0444511607
  • Language English
  • Author I.P. Skilling,J.D.L. White,J. McPhie
  • Publisher Elsevier Science (October 22, 2002)
  • Pages 264
  • Formats lit txt doc lrf
  • Category Math
  • Subcategory Earth Sciences
  • Size ePub 1360 kb
  • Size Fb2 1302 kb
  • Rating: 4.2
  • Votes: 817

This book is a collection of papers concerned with the processes and products of magma-sediment mingling and the origin of peperite. Three papers are concerned with physical modelling of magma-wet sediment interaction, whereas the majority of the papers describe a wide variety of peperite compositional and textural types, and discuss controls on their formation. The first paper reviews the current understanding of peperite generation, and serves as an extended introduction to the volume.

Peperite is a common rock type generated in many volcanic and sub-volcanic environments. Its study is important for several reasons. Correct identification of peperite is critical in palaeoenvironmental reconstruction and relative chronology, as its presence can demonstrate contemporaneity of volcanism and sedimentation. Peperite may also record a snapshot of the processes that occur prior to hydromagmatic explosions, and which are otherwise not preserved in the resulting deposit. Its study can therefore provide information on the factors and mechanisms that influence the likelihood of such hazardous explosions. Peperite also indicates the presence of syn-volcanic sills that may be important sources of heat and/or fluids for co-eval hydrothermal systems.


The study of peperite is important for understanding magma^water .

The study of peperite is important for understanding magma^water interaction and explosive hydrovolcanic hazards. Peperite is common in arc-related and other volcano-sedimentary sequences, where it can be voluminous and dispersed widely from the parent intrusions. It also occurs in phreatomagmatic vent-filling deposits and along contacts between sediment and intrusions, lavas and hot volcaniclastic deposits in many environments. Peperite can often be described on the basis of juvenile clast morphology as blocky or fluidal, but.

White b, J. McPhie c a Department of Geology, University of Southern Mississippi, . Box 5044, Hattiesburg, MS 39406-5044, USA b Geology Department, University of Otago, . Box 56, Dunedin, New Zealand c CODES, University of Tasmania, . Box 252-79, 7001 Hobart, Australia Received 2 March 2001; accepted 26 June 2001. Abstract The study of peperite is important for understanding magma^water interaction and explosive hydrovolcanic hazards.

Peperite is common in arc-related and other volcano-sedimentary sequences, where it can be voluminous and dispersed widely from the parent intrusions.

When magma comes into contact with wet sediment several processes combine to produce the mixture of sedimentary and igneous clasts which is characteristic of a. a b c d e Skilling, . L/ & McPhie, J. 2002.

When magma comes into contact with wet sediment several processes combine to produce the mixture of sedimentary and igneous clasts which is characteristic of a peperite. These processes are required to produce both the disintegration or fragmentation of magma to form juvenile clasts and the mingling of these clasts within the sediment. Mechanisms proposed for the fragmentation of the magma include; fracturing due to the stresses associated with quenching, autobrecciation due to continuing flow in the cooling magma, pore-water steam explosions and magma-sediment density contrasts.

McPhie, J. (Ed., Peperite: Processes and. Products of Magma–Sediment Mingling. Re. vol. 114, pp. 1-17. Peperites formed by mixing of magma and wet sediment are well exposed along Punta China, Baja California, Mexico, where two sills intrude a section of lava flows, limestones, and volcaniclastic rocks.

Skilling, I, White, JDL, McPhie, J. Date. What are reading intentions? Setting up reading intentions help you organise your course reading. It makes it easy to scan through your lists and keep track of progress. Here's an example of what they look like: Your reading intentions are also stored in your profile for future reference. How do I set a reading intention.

IP Skilling, JDL White, J McPhie. Variation in peperite textures associated with differing host-sediment properties. CJ Busby-Spera, JDL White. Bulletin of Volcanology 49 (6), 765-776, 1987. Maar-diatreme phreatomagmatism at Hopi Buttes, Navajo Nation (Arizona), USA. JDL White.

Peperite Processes and Products of Magma-Sediment Mingling. Amsterdam, The Netherlands : Elsevier, 2002. Dadd, K & van Wagoner, N (eds) 2002, Peperite Processes and Products of Magma-Sediment Mingling. Elsevier, Amsterdam, The Netherlands. Peperite Processes and Products of Magma-Sediment Mingling.

Magma mingling develops in suprasubduction, intraplate, and collisional settings. The attributes typical of each type of mingling are discussed with special emphasis on the magma mingling of the collisional type, which is related to synmetamorphic shearing and may be regarded as a direct indicator of synorogenic collapse of collisional structural features. This phenomenon is exemplified in the Ol’khon collisional system in Siberia. This process is experimental and the keywords may be updated as the learning algorithm improves.

A Peperite is a sedimentary rock that contains fragments of igneous material and is formed .

A Peperite is a sedimentary rock that contains fragments of igneous material and is formed when magma comes into contact with wet sediments. The term was originally used to describe rocks from the Limagne region of France, from the similarity in appearance of the granules of dark basalt in the light-coloured limestone to black pepper. When magma comes into contact with wet sediment several processes combine to produce the mixture of sedimentary and igneous clasts which is characteristic of a peperite.