Results 21 to 30 of about 208 (182)

Geochemistry and petrology of two kimberlites at Krishtipadu from Gooty cluster, Andhra Pradesh, southern India - evidence of kimberlite magmatism and a possible carbonatite association within Palaeoproterozoic lower Cuddapah basin

Russian Journal of Earth Sciences, 2020
This paper addresses geochemical and petrological aspects of two outcropping kimberlites (5023 and 5119) of the Gooty cluster, emplaced in carbonate sediments of Vempalli Formation of lower Cuddapah basin at Krishtipadu, Anantapur district, Andhra ...
Phani P Ramesh Chandra, Sengupta Prabir, Basu Sudeshna   +2 more
doaj   +1 more source

THE FEATURES OF THE INDICATOR MINERALS OF KIMBERLITES IN A NEW PIPE YANVARSKAJA (WESTERN YAKUTIA)

Известия высших учебных заведений: Геология и разведка, 2017
The first results of the mineral-petrographic studies of microclastes of kimberlites from the basal horizon of the Upper Paleozoic deposits of the Alakit-Markhinsky kimberlite field (Western Yakutia) have been presented.
D. V. Ivanov, V. V. Ivanov, A. V. Tolstov   +2 more
doaj   +1 more source

Lamprophyre sites of Wajrakarur Kimberlite Field, Southern India: Potential candidates for developing as geoparks

International Journal of Geoheritage and Parks, 2023
This article presents field description of lamprophyres of the Wajrakarur Kimberlite Field (WKF) emphasising their geoscientific potential to develop and popularize them as geoparks.
Pothuri Ramesh Chandra Phani, Madabhooshi Srinivas, Ioannis Kamvisis, Rokalla Ananda Reddy   +3 more
doaj   +1 more source

XENOLITHS OF POLYMICTIC BRECCIAS FROM KIMBERLITES OF THE YAKUTIAN DIAMONDIFEROUS PROVINCE

Геодинамика и тектонофизика, 2022
The polymictic breccias, extremely rare mantle conglomerates being the fragments of rocks and large mantle minerals cemented with fine-grained mass have been long provoking interest of petrologists worldwide.
L. N. Pokhilenko, N. P. Pokhilenko, V. P. Afanasiev   +2 more
doaj   +1 more source

Revealing the Magmatic Impulse Emplacement and Evolution Path of Kimberlite in Southern Liaoning through Mineralogical Characteristics of the Phlogopite Zone

Applied Sciences
Phlogopite is a crucial indicator for effectively constraining the magmatic evolution and emplacement mechanism of kimberlite. In this study, samples were collected from the No. 110 kimberlite pipe within diamond belt I and the No.
Sishun Ma, Ende Wang, Haitao Fu
doaj   +1 more source

Petro- and paleomagnetic characteristics of the structural–material complexes of the diamond mining of the Nyurbinskaya pipe (Middle Markha district, West Yakutia)

Геодинамика и тектонофизика, 2017
Modeling of physical and geological properties of a study object is an integral part of geological surveys at each stage. Without a model of physical and geological properties (PhGM) it is impossible to obtain a complete set of reflection indicators of ...
K. M. Konstantinov, А. A. Yakovlev, Т. А. Antonova, I. К. Konstantinov, Sh. Z. Ibragimov, E. V. Artemova   +5 more
doaj   +1 more source

Incipient stages of transformation of round natural diamonds under dissolution in Fe-S melt at high pressure

Литосфера, 2020
Research subject. The article presents the results of a microscopic and photogoniometric study of natural rounded diamonds of tetraghexahedral habit from the kimberlite pipe “Internationalnaya” (Yakutia). The diamonds was partially dissolved in a sulphur-
V. M. Sonin, E. I. Zhimulev, A. A. Chepurov, B. S. Pomazanskiy, V. P. Afanasiev, A. I. Chepurov   +5 more
doaj   +1 more source

DYNAMIC PHYSICAL-GEOLOGICAL MODEL OF THE FIELD OF DIAMONDS FROM THE KOMSOMOLSKAYA KIMBERLITE PIPE (ALAKIT-MARKHA FIELD OF WESTERN YAKUTIA)

Геодинамика и тектонофизика, 2022
Petrophysical, tectonophysical and paleomagnetic studies were done on the field of diamonds from the Komsomolskaya kimberlite pipe to interpret the observed gravimagnetic field. As a result of studying the structural-material complexes (SMC) of the field,
K. M. Konstantinov, A. S. Gladkov
doaj   +1 more source

MIKHAIL M. ODINTSOV’S EXHIBITION IN THE MUSEUM OF THE INSTITUTE OF THE EARTH’S CRUST

Геодинамика и тектонофизика, 2015
The Museum of the Institute of the Earth’s Crust opened an exhibition devoted to Mikhail M. Odintsov (1911–1980), the prominent Russian geologist and the corresponding member of the USSR Academy of Sciences, who headed the Institute of the Earth’s Crust ...
Larisa A. Ivanova
doaj   +1 more source

Progressively Fenitised Schist and Carbonatitic Clasts From a Metasomatic Aureole Beneath the Alkalic Dunedin Volcano, Otago, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley   +1 more source