...Ashish N. Dongre; K.S. Viljoen; M. Malandkar Abstract This paper serves to report, for the first time, on the chemical composition of primary groundmass minerals occurring in a newly discovered kimberlite located 150m NE of the well known Pipe 2 kimberlite in the Wajrakarur cluster...

... of the Wajrakarur Kimberlite Field of the Eastern Dharwar Craton. The lamprophyre consists of a high modal abundance of amphibole (magnesio-hornblende) phenocrysts and microphenocrysts along with clinopyroxene (diopside) microphenocrysts set in a feldspathic groundmass. The inequigranular texture of the lamprophyre...

...Gurmeet Kaur; R. H. Mitchell Abstract A detailed mineralogical examination of representative material from the P2-West ‘kimberlite’ located in the Wajrakarur Kimberlite Field (India) demonstrates that significant differences exist between these rocks and archetypal hypabyssal kimberlite...

...Abhijeet Mukherjee; K. S. Rao; E. V. S. S. K. Babu; Gautam Roy Abstract Geological Survey of India had recently discovered Wajrakarur pipe-10 and spinels from this pipe were analysed. Q-cluster analysis of these spinels based on Cr 2 O 3, Al 2 O 3, TiO 2 and MgO contents indicate the presence of S1...

...Burra Subrahmanyam Copyright © 1997 Geological Society of India 1997 Geological Society of India JOURNAL GEOLOGICAL SOCIETY OF INDIA Vol.49, Feb. 1997, pp. 207-208 Note on the Potential Target Areas for Exploration of Kimberlites in Wajrakarur Area, Ananthapur Dist. A.F'. BURRA SUBRAHMANYAM...

...Burra Subrahmanyam; J. A. V. R. K Subba Rao; H. V. Rao; D. Chakravarthy Abstract The deep fractures reported from near the Pennar - Hagari schist belt in Wajrakarur - Lattavaram - P.C. Pyapilli, Ananthapur District, A.P. (Fig. 1) when followed by ground geophysical methods have brought out...

... around Wajrakarur in Anantapur district, Andhra Pradesh. The paper gives the geology of the pipes including a preliminary study of their mineralogy. KIMBERLITE PIPE-ROCKS OF WAJRAKARUR AREA ANANTAPUR DISTRICT, ANDHRA PRADESH P. SATYANARAYANA RAO AND P. N. PHADTRE Trivandrum (Communicated by S...

... at Khaderpet within the Wajrakarur Kimberlite Field (WKF), south India. The kimberlite clan rock (KCR) of Kaderpet is expressed as a chloritised kimberlite- granite breccia that shows characteristics of an ultramafic lamprophyre. Owing to good response given by WKF kimberlites for magnetic surveys, a magnetic...

... of Indian kimberlites. The south Indian Diamond Province has several kimberlite fields ( Fig.1 ). Cratonic xenoliths have been reported from Wajrakarur kimberlite field (WKF), including eclogites, pyroxenites, lherzolites, wherlites, harzburgites, MARID suite and glimmerites ( Akela et al., 1979...

... by contamination and alteration processes. Bulk-rock Sr isotopic data obtained for 18 intrusions from the adjacent Narayanpet and Wajrakarur kimberlite fields of the Dharwar Craton, India, exhibit a high degree of scatter (∼0.701–0.709) and have indistinguishable initial isotope ratios. In contrast, laser ablation...

... metasomatized mantle source regions and have a HIMU-type geochemical character. Raghuvanshi et al. (2019) explored the genetic relationship between kimberlites and lamprophyres from the Wajrakarur Kimberlite Field of the Eastern Dharwar Craton and demonstrated their ‘shoshonitic’ character. It is proposed...

..., and the Wajrakarur kimberlite field in the south. The kimberlites of the WKF occur in five distinct clusters- the Wajrakarur, the Lattavaram, the Chigicherla, the Kalyandurg and the Timmasamudram. Interestingly, some shoshonitic lamprophyre dykes characterized by the presence of olivine, biotite, zoned clinopyroxene...

... with those of pipe 1,2,3,4 and 5 of Wajrakarur- Lattavaram area and pipe 10 of Chighicherla indicate that Zr-Hf, Nb-Ta, Th-U have a high degree of correlation. The ratio of Ba/Nb( <10), Z/Hf( -50) and Nb/Zr (>0.5) are similar to the Group-I kimberlites. The chondri te normalised REE pattern of pipe 11...