Untold story of Deccan Traps: Role of silicate Liquid Immiscibility
Journal Title: Modern Approaches in Oceanography and Petrochemical Sciences - Year 2018, Vol 1, Issue 1
Abstract
Role of liquid immiscibility has immense importance in petro genesis of basaltic magmas. Roedder, Weiblen [1,2] postulated that high silica and high iron glasses of the lunar basaltic rocks have widespread petro genetic significance. In lunar basalts, generally, the globules of dark brown glass appear to have composition equivalent to Pyroxene + Iron ore. On the contrary, it is significant that Washington [3] initially recognized that the residual glass in the Deccan Trap basalts should be composition corresponding to a mixture of augite and magnetite. The role of liquid immiscibility in basaltic magmas had been graphically depicted by Roedder [4] in terms of SiO2-(FeO+MgO+CaO)-(K2O+Na2O+Al2O3) diagram; characteristically the liquid immiscibility field in Roedder’s ternary plot assumes an elongated elliptical geometry relatively away from SiO2-rich corner. The compositions of terrestrial basalts like Deccan Trap [3] Palisade diabase sill [5] etc. fall close to the demarcated liquid immiscibility field of Roedder [4]. The samples of lunar basalt obtained from Apollo 11 and 12 expeditions were also plotted in the ternary plot proposed by Roedder [4].
Authors and Affiliations
Jyotisankar Ray, Payel Dey, Indu Ray
Keywords
Related Articles
- EP ID EP618484
- DOI 10.32474/MAOPS.2018.01.000105
- Views 87
- Downloads 0
Sidedness of Divergence as a Key to Understanding Southern Ocean Upwelling in the Overturning Circulation of the Oceans
Sidedness of divergence helps resolve a present discordance in our understanding of upwelling in the Southern Ocean, and thus it contributes to the evolving recognition of the oceans’ overturning circulation. Divergence...
Underwater Optical Image Processing
Image processing can be defined as performing any process on the visual data or vision signals such as a stored digital image, a photo from a scene or a video frame [1]. The output of an image processor might be another...
Isotope Channelomics of Chemoautotroph as the Predictor and Regulator of the Metal Deposit formation and the Weathering Factor
Chemoautotrophic and lithotrophic microorganisms are known to participate in the deposit formation and the rock weathering, but the results of such chemoautotroph-mediated biogeochemical activity and mass transfer strong...
The Perception of Fluctuations of Cell Velocity as a Possible Means of Overcoming Sedimentation by Motile Sea-Plankton Microorganisms
A model for overcoming the gravity by cells of wide range of motile sea-plankton microorganisms without gravity perception or antipredator behavior is proposed here. It is based on the assuming that the cells are able to...
Long Term Winter Season 2017/2018 Northern Hemisophere and Their Impact over Indonesia Maritime Continent Area
The winter season 2017/2018 could be one of the unusual condition with increasing the winter storm activities over Northern Hemisphere to affect aerodrome closed for certain airports in big city of the United States of A...