Standard

Graphite in rocks of the popigai impact crater : Residual or retrograde? / Afanasiev, Valentin; Gromilov, Sergey; Sonin, Valeri et al.

In: Turkish Journal of Earth Sciences, Vol. 28, No. 3, 01.01.2019, p. 470-477.

Research output: Contribution to journal › Article › peer-review

Harvard

Afanasiev, V, Gromilov, S, Sonin, V, Zhimulev, E & Chepurov, A 2019, 'Graphite in rocks of the popigai impact crater: Residual or retrograde?', Turkish Journal of Earth Sciences, vol. 28, no. 3, pp. 470-477. https://doi.org/10.3906/yer-1808-6

APA

Afanasiev, V., Gromilov, S., Sonin, V., Zhimulev, E., & Chepurov, A. (2019). Graphite in rocks of the popigai impact crater: Residual or retrograde? Turkish Journal of Earth Sciences, 28(3), 470-477. https://doi.org/10.3906/yer-1808-6

Vancouver

Afanasiev V, Gromilov S, Sonin V, Zhimulev E, Chepurov A. Graphite in rocks of the popigai impact crater: Residual or retrograde? Turkish Journal of Earth Sciences. 2019 Jan 1;28(3):470-477. doi: 10.3906/yer-1808-6

Author

Afanasiev, Valentin ; Gromilov, Sergey ; Sonin, Valeri et al. / Graphite in rocks of the popigai impact crater : Residual or retrograde?. In: Turkish Journal of Earth Sciences. 2019 ; Vol. 28, No. 3. pp. 470-477.

BibTeX

@article{c26c79adde5541dcbd51ba67ae2daf43,
title = "Graphite in rocks of the popigai impact crater: Residual or retrograde?",
abstract = "The concentration of diamond-bearing tagamite from the Popigai impact crater produces large amounts of graphite in addition to impact diamonds (1:100, respectively). The question arises of whether this is residual graphite not converted to diamond at the time of the Popigai impact or is a retrograde form resulting from back-conversion of impact diamond to graphite in a high-temperature tagamite melt. Experiments show that graphite from tagamite is a residual phase. Coexistence of lonsdaleite, cubic diamond, and single-crystal graphite within a limited volume may be due to different orientations of the graphite base plane relative to the impact stress direction. Thus, the diamond-bearing rocks may contain significant amounts of residual graphite, which is consistent with published evidence.",
keywords = "Bulk graphitization, Graphite, Impact crater, Impact diamond, Surface graphitization",
author = "Valentin Afanasiev and Sergey Gromilov and Valeri Sonin and Egor Zhimulev and Aleksei Chepurov",
note = "Publisher Copyright: {\textcopyright} T{\"U}BİTAK.",
year = "2019",
month = jan,
day = "1",
doi = "10.3906/yer-1808-6",
language = "English",
volume = "28",
pages = "470--477",
journal = "Turkish Journal of Earth Sciences",
issn = "1300-0985",
publisher = "TUBITAK",
number = "3",

}

RIS

TY - JOUR

T1 - Graphite in rocks of the popigai impact crater

T2 - Residual or retrograde?

AU - Afanasiev, Valentin

AU - Gromilov, Sergey

AU - Sonin, Valeri

AU - Zhimulev, Egor

AU - Chepurov, Aleksei

N1 - Publisher Copyright: © TÜBİTAK.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The concentration of diamond-bearing tagamite from the Popigai impact crater produces large amounts of graphite in addition to impact diamonds (1:100, respectively). The question arises of whether this is residual graphite not converted to diamond at the time of the Popigai impact or is a retrograde form resulting from back-conversion of impact diamond to graphite in a high-temperature tagamite melt. Experiments show that graphite from tagamite is a residual phase. Coexistence of lonsdaleite, cubic diamond, and single-crystal graphite within a limited volume may be due to different orientations of the graphite base plane relative to the impact stress direction. Thus, the diamond-bearing rocks may contain significant amounts of residual graphite, which is consistent with published evidence.

AB - The concentration of diamond-bearing tagamite from the Popigai impact crater produces large amounts of graphite in addition to impact diamonds (1:100, respectively). The question arises of whether this is residual graphite not converted to diamond at the time of the Popigai impact or is a retrograde form resulting from back-conversion of impact diamond to graphite in a high-temperature tagamite melt. Experiments show that graphite from tagamite is a residual phase. Coexistence of lonsdaleite, cubic diamond, and single-crystal graphite within a limited volume may be due to different orientations of the graphite base plane relative to the impact stress direction. Thus, the diamond-bearing rocks may contain significant amounts of residual graphite, which is consistent with published evidence.

KW - Bulk graphitization

KW - Graphite

KW - Impact crater

KW - Impact diamond

KW - Surface graphitization

UR - http://www.scopus.com/inward/record.url?scp=85068482504&partnerID=8YFLogxK

U2 - 10.3906/yer-1808-6

DO - 10.3906/yer-1808-6

M3 - Article

AN - SCOPUS:85068482504

VL - 28

SP - 470

EP - 477

JO - Turkish Journal of Earth Sciences

JF - Turkish Journal of Earth Sciences

SN - 1300-0985

IS - 3

ER -

ID: 20780406