Pressure Increases, the Formation of Chromite Seams, and the Development of the Ultramafic Series in the Stillwater Complex, Montana

Lipin, Bruce R.

doi:10.1093/petrology/34.5.955

Cited by 112 publications

(37 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2.11). This model has classically been invoked for the formation of chromitite layers in Muskox, Bushveld and Stillwater (Irvine 1975(Irvine , 1977Lipin 1993) but also to the Only a small part of the system olivine-chromite-quartz ( grey field in the inset triangle) is represented and shows the stability fields of olivine, orthopyroxene and chromite. Boundary curves with double arrows are reaction boundaries, and cotectic curves are represented with a single arrow.…”

Section: Fig 210mentioning

confidence: 99%

Igneous Layering in Basaltic Magma Chambers

et al. 2015

View full text Add to dashboard Cite

PrefaceLayered intrusions have received continuous interest since the publication of the treatise on 'Layered Igneous Rocks' by Lawrence Wager and Malcolm Brown, updated in books edited by Ian Parsons in 1987 and Grant Cawthorn in 1996. The study of these fossilized magma chambers keep inspiring a number of scientists with a range of interests including petrology and igneous differentiation, geochronology, geochemistry, mineralogy, rock textures and fabric, fluid dynamics, and ore deposits. The goal of this book is to further our understanding of magma chamber processes and crystal-liquid relationship during magma cooling magma. Physical and chemical processes are now better quantified thanks to the development analytical and computing tools such as compositional mapping, 3D X-ray computed tomography, in situ analyses for trace elements and isotopes, development of new experimental facilities, and progress in instrument sensitivity.The book is subdivided into two parts. The first includes reviews and new views on chronological, textural, mineralogical, geochemical, and magnetic characteristics of layered igneous rocks. The second part reviews recent progress in the study of layered intrusions. A newcomer on the layered intrusions scene is the Panzhihua intrusion (SW China) that has been intensively studied recently. Reviews of recent findings for Sept Iles, Bushveld, Kiglapait, Ilímaussaq, and layered rocks in ophiolites are also presented. Interest in layered intrusions is also driven by their natural resources. Many intrusions host world-class ore bodies of chromium, platinum group elements (PGE), vanadium, titanium and phosphorous. Ore-forming processes and important deposits associated with layered intrusions are described and their origin is discussed.The objective of this book is to outline the most recent ideas and challenges in the study of layered igneous bodies. It has also the purpose to aid in teaching, and to encourage new studies to tackle major issues in the understanding of magma chamber processes and associated ore-forming processes.The book has benefited from detailed comments by a many reviewers, who are greatly acknowledged:

show abstract

Section: Fig 210mentioning

confidence: 99%

Igneous Layering in Basaltic Magma Chambers

et al. 2015

View full text Add to dashboard Cite

show abstract

“…An increase in pressure (Cameron, 1980;Lipin, 1993;Cawthorn, 2005) represents an elegant model as pressure changes would affect the entire chamber simultaneously. It is possible that the frequent replenishment of the Bushveld chamber with new magma pulses was responsible for multiple earthquakes and venting of the chamber resulting in pressure changes.…”

Section: Previously Proposed Models For the Formation Of The Chromitimentioning

confidence: 99%

Platinum-group elements in the UG1 and UG2 chromitites, and the Bastard reef, at Impala platinum mine, western Bushveld Complex, South Africa: Evidence for late magmatic cumulate instability and reef constitution

Maier

Barnes

2008

South African Journal of Geology

View full text Add to dashboard Cite

“…Chromitite formation has long been debated and several petrogenetic models exist (see Campbell and Murck, 1993;Naldrett et al, 2012), including: liquid immiscibility (McDonald, 1965), oxidation (Ulmer, 1969;Cameron and Desborough, 1969), pressure fluctuations (Lipin, 1993), and assimilation of silicic crustal rock by mafic magma (Irvine, 1975;Spandler et al, 2005). Studying ophiolites, Bédard and Hébert (1998) have demonstrated the formation of chromitite via assimilation of crustal pyroxenite and gabbro by picrite melt intrusion.…”

Section: Introductionmentioning

confidence: 99%