Plume-lithosphere interaction, and the formation of fibrous diamonds

Standard

Plume-lithosphere interaction, and the formation of fibrous diamonds. / Broadley, M. W.; Kagi, H.; Burgess, R. et al.

In: Geochemical Perspectives Letters, Vol. 8, 01.01.2018, p. 26-30.

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

Harvard

Broadley, MW, Kagi, H, Burgess, R, Zedgenizov, D, Mikhail, S, Almayrac, M, Ragozin, A, Pomazansky, B & Sumino, H 2018, 'Plume-lithosphere interaction, and the formation of fibrous diamonds', Geochemical Perspectives Letters, vol. 8, pp. 26-30. https://doi.org/10.7185/geochemlet.1825

APA

Broadley, M. W., Kagi, H., Burgess, R., Zedgenizov, D., Mikhail, S., Almayrac, M., Ragozin, A., Pomazansky, B., & Sumino, H. (2018). Plume-lithosphere interaction, and the formation of fibrous diamonds. Geochemical Perspectives Letters, 8, 26-30. https://doi.org/10.7185/geochemlet.1825

Vancouver

Broadley MW, Kagi H, Burgess R, Zedgenizov D, Mikhail S, Almayrac M et al. Plume-lithosphere interaction, and the formation of fibrous diamonds. Geochemical Perspectives Letters. 2018 Jan 1;8:26-30. doi: 10.7185/geochemlet.1825

Author

Broadley, M. W. ; Kagi, H. ; Burgess, R. et al. / Plume-lithosphere interaction, and the formation of fibrous diamonds. In: Geochemical Perspectives Letters. 2018 ; Vol. 8. pp. 26-30.

BibTeX

@article{3c1e59ebca39407a8454de3da4ab3701,

title = "Plume-lithosphere interaction, and the formation of fibrous diamonds",

abstract = "Fluid inclusions in diamond provide otherwise inaccessible information on the origin and nature of carbonaceous fluid(s) in the mantle. Here we evaluate the role of subducted volatiles in diamond formation within the Siberian cratonic lithosphere. Specifically, we focus on the halogen (Cl, Br and I) and noble gas (He, Ne and Ar) geochemistry of fluids trapped within cubic, coated and cloudy fibrous diamonds from the Nyurbinskaya kimberlite, Siberia. Our data show Br/ Cl and I/Cl ratios consistent with involvement of altered oceanic crust, suggesting subduction-derived fluids have infiltrated the Siberian lithosphere. 3He/4He ranging from 2 to 11 RA, indicates the addition of a primordial mantle component to the SCLM. Mantle plumes may therefore act as a trigger to re-mobilise subducted carbon-rich fluids from the sub-continental lithospheric mantle, and we argue this may be an essential process in the formation of fluid-rich diamonds, and kimberlitic magmatism.",

keywords = "MANTLE FLUIDS, NOBLE-GAS, CRATONIC LITHOSPHERE, COATED DIAMONDS, MIDOCEAN RIDGE, INCLUSIONS, HALOGEN, KIMBERLITE, XENOLITHS, BASALTS",

author = "Broadley, {M. W.} and H. Kagi and R. Burgess and D. Zedgenizov and S. Mikhail and M. Almayrac and A. Ragozin and B. Pomazansky and H. Sumino",

year = "2018",

month = jan,

day = "1",

doi = "10.7185/geochemlet.1825",

language = "English",

volume = "8",

pages = "26--30",

journal = "Geochemical Perspectives Letters",

issn = "2410-339X",

publisher = "European Association of Geochemistry",

}

RIS

TY - JOUR

T1 - Plume-lithosphere interaction, and the formation of fibrous diamonds

AU - Broadley, M. W.

AU - Kagi, H.

AU - Burgess, R.

AU - Zedgenizov, D.

AU - Mikhail, S.

AU - Almayrac, M.

AU - Ragozin, A.

AU - Pomazansky, B.

AU - Sumino, H.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Fluid inclusions in diamond provide otherwise inaccessible information on the origin and nature of carbonaceous fluid(s) in the mantle. Here we evaluate the role of subducted volatiles in diamond formation within the Siberian cratonic lithosphere. Specifically, we focus on the halogen (Cl, Br and I) and noble gas (He, Ne and Ar) geochemistry of fluids trapped within cubic, coated and cloudy fibrous diamonds from the Nyurbinskaya kimberlite, Siberia. Our data show Br/ Cl and I/Cl ratios consistent with involvement of altered oceanic crust, suggesting subduction-derived fluids have infiltrated the Siberian lithosphere. 3He/4He ranging from 2 to 11 RA, indicates the addition of a primordial mantle component to the SCLM. Mantle plumes may therefore act as a trigger to re-mobilise subducted carbon-rich fluids from the sub-continental lithospheric mantle, and we argue this may be an essential process in the formation of fluid-rich diamonds, and kimberlitic magmatism.

AB - Fluid inclusions in diamond provide otherwise inaccessible information on the origin and nature of carbonaceous fluid(s) in the mantle. Here we evaluate the role of subducted volatiles in diamond formation within the Siberian cratonic lithosphere. Specifically, we focus on the halogen (Cl, Br and I) and noble gas (He, Ne and Ar) geochemistry of fluids trapped within cubic, coated and cloudy fibrous diamonds from the Nyurbinskaya kimberlite, Siberia. Our data show Br/ Cl and I/Cl ratios consistent with involvement of altered oceanic crust, suggesting subduction-derived fluids have infiltrated the Siberian lithosphere. 3He/4He ranging from 2 to 11 RA, indicates the addition of a primordial mantle component to the SCLM. Mantle plumes may therefore act as a trigger to re-mobilise subducted carbon-rich fluids from the sub-continental lithospheric mantle, and we argue this may be an essential process in the formation of fluid-rich diamonds, and kimberlitic magmatism.

KW - MANTLE FLUIDS

KW - NOBLE-GAS

KW - CRATONIC LITHOSPHERE

KW - COATED DIAMONDS

KW - MIDOCEAN RIDGE

KW - INCLUSIONS

KW - HALOGEN

KW - KIMBERLITE

KW - XENOLITHS

KW - BASALTS

UR - http://www.scopus.com/inward/record.url?scp=85057454372&partnerID=8YFLogxK

U2 - 10.7185/geochemlet.1825

DO - 10.7185/geochemlet.1825

M3 - Article

VL - 8

SP - 26

EP - 30

JO - Geochemical Perspectives Letters

JF - Geochemical Perspectives Letters

SN - 2410-339X

ER -

ID: 17669942