Drilling the new 5G-5 branch hole at Vostok Station for collecting a replicate core of old meteoric ice

Standard

Drilling the new 5G-5 branch hole at Vostok Station for collecting a replicate core of old meteoric ice. / Turkeev, A.V.; Vasilev, N.I.; Lipenkov, V.Ya.; Bolshunov, A.V.; Ekaykin, A.A.; Dmitriev, A.N.; Vasilev, D.A.

в: Annals of Glaciology, 21.04.2021, стр. 1-6.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Turkeev, A.V. ; Vasilev, N.I. ; Lipenkov, V.Ya. ; Bolshunov, A.V. ; Ekaykin, A.A. ; Dmitriev, A.N. ; Vasilev, D.A. / Drilling the new 5G-5 branch hole at Vostok Station for collecting a replicate core of old meteoric ice. в: Annals of Glaciology. 2021 ; стр. 1-6.

BibTeX

@article{f032e1dbef5242a88c587595dcba0730,

title = "Drilling the new 5G-5 branch hole at Vostok Station for collecting a replicate core of old meteoric ice",

abstract = "Recent studies have shown that stratigraphically disturbed meteoric ice bedded at Vostok Station between 3318 and 3539 m dates back to 1.2 Ma BP and possibly beyond. As part of the VOICE (Vostok Oldest Ice Challenge) initiative, a new deviation from parent hole 5G-1 was made at depths of 3270–3291 m in the 2018/19 austral season with the aim of obtaining a replicate core of the old ice. Sidetracking was initiated using the standard KEMS-132 electromechanical drill routinely employed for deep ice coring at Vostok, without significant changes to its initial design. Here we describe the method and operating procedures for replicate coring at a targeted depth in an existing slant hole, involving the use of a cable-suspended electromechanical drill. The design of the milling cutter head used for sidetracking is presented. The performance characteristics and the experience of drilling branch-hole 5G-5 at Vostok are described and discussed.",

keywords = "Ice drilling, old ice, paleoclimate, replicate ice coring, sidetracking",

author = "A.V. Turkeev and N.I. Vasilev and V.Ya. Lipenkov and A.V. Bolshunov and A.A. Ekaykin and A.N. Dmitriev and D.A. Vasilev",

year = "2021",

month = apr,

day = "21",

doi = "10.1017/aog.2021.4",

language = "English",

pages = "1--6",

journal = "Annals of Glaciology",

issn = "0260-3055",

publisher = "International Glaciology Society",

}

RIS

TY - JOUR

T1 - Drilling the new 5G-5 branch hole at Vostok Station for collecting a replicate core of old meteoric ice

AU - Turkeev, A.V.

AU - Vasilev, N.I.

AU - Lipenkov, V.Ya.

AU - Bolshunov, A.V.

AU - Ekaykin, A.A.

AU - Dmitriev, A.N.

AU - Vasilev, D.A.

PY - 2021/4/21

Y1 - 2021/4/21

N2 - Recent studies have shown that stratigraphically disturbed meteoric ice bedded at Vostok Station between 3318 and 3539 m dates back to 1.2 Ma BP and possibly beyond. As part of the VOICE (Vostok Oldest Ice Challenge) initiative, a new deviation from parent hole 5G-1 was made at depths of 3270–3291 m in the 2018/19 austral season with the aim of obtaining a replicate core of the old ice. Sidetracking was initiated using the standard KEMS-132 electromechanical drill routinely employed for deep ice coring at Vostok, without significant changes to its initial design. Here we describe the method and operating procedures for replicate coring at a targeted depth in an existing slant hole, involving the use of a cable-suspended electromechanical drill. The design of the milling cutter head used for sidetracking is presented. The performance characteristics and the experience of drilling branch-hole 5G-5 at Vostok are described and discussed.

AB - Recent studies have shown that stratigraphically disturbed meteoric ice bedded at Vostok Station between 3318 and 3539 m dates back to 1.2 Ma BP and possibly beyond. As part of the VOICE (Vostok Oldest Ice Challenge) initiative, a new deviation from parent hole 5G-1 was made at depths of 3270–3291 m in the 2018/19 austral season with the aim of obtaining a replicate core of the old ice. Sidetracking was initiated using the standard KEMS-132 electromechanical drill routinely employed for deep ice coring at Vostok, without significant changes to its initial design. Here we describe the method and operating procedures for replicate coring at a targeted depth in an existing slant hole, involving the use of a cable-suspended electromechanical drill. The design of the milling cutter head used for sidetracking is presented. The performance characteristics and the experience of drilling branch-hole 5G-5 at Vostok are described and discussed.

KW - Ice drilling

KW - old ice

KW - paleoclimate

KW - replicate ice coring

KW - sidetracking

UR - http://www.scopus.com/inward/record.url?scp=85104768672&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/c79e7fa4-c95d-3ef8-a7e0-9234b8cbbd28/

U2 - 10.1017/aog.2021.4

DO - 10.1017/aog.2021.4

M3 - Article

SP - 1

EP - 6

JO - Annals of Glaciology

JF - Annals of Glaciology

SN - 0260-3055

ER -

ID: 76183992