English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

CaCO3-rich carbonatites seem to be the most common and abundant carbonatite in many complexes. The Amba Dongar complex too, is dominantly composed of sovite. Its dike equivalent-(alvikite I and II), though volumetrically less abundant, occur in association with sovite. Majority of sovites samples are composed essentially of CaCO3 and MgO content is low (0.99% average) and goes up to maximum 3% in phlogopite-sovite. A small fraction of periclase was reported earlier from some sovite samples by Viladkar and Wimmenauer, [4]. In this paper I propose that sovites are crystallized from calciocarbonatite magma. Trace elements and REE distribution patterns suggest that sovite fractionated to Alvikite I and II. The C and O isotope data provides evidence to supports the mantle derivation of the carbonatite magma at Amba Dongar.

Evolution of Calciocarbonatite Magma: Evidence from the Sövite and Alvikite Association in the Amba Dongar Complex, India