Tellurium enrichment in Jurassic coal, Brora, Scotland

Liam Bullock, John Parnell, Magali Perez, Joerg Feldmann

Research output: Contribution to journalArticle

5 Citations (Scopus)
82 Downloads (Pure)

Abstract

Mid-Jurassic pyritic coals exposed at the village of Brora, northern Scotland, UK, contain a marked enrichment of tellurium (Te) relative to crustal mean, average world coal compositions and British Isles Carboniferous coals. The Te content of Brora coal pyrite is more than one order of magnitude higher than in sampled pyrite of Carboniferous coals. The Te enrichment coincides with selenium (Se) and mercury (Hg) enrichment in the rims of pyrite, and Se/Te is much lower than in pyrites of Carboniferous coals. Initial pyrite formation is attributed to early burial (syn-diagenesis), with incorporation of Te, Se, Hg and lead (Pb) during later pyrite formation. The source of Te may have been a local hydrothermal system which was responsible for alluvial gold (Au) in the region, with some Au in Brora headwaters occurring as tellurides. Anomalous Te is not ubiquitous in coal, but may occur locally, and is detectable by laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS).
Original languageEnglish
Article number231
Pages (from-to)1-13
Number of pages13
JournalMinerals
Volume7
Issue number12
DOIs
Publication statusPublished - 23 Nov 2017

Fingerprint

tellurium
Tellurium
Pyrites
Jurassic
Coal
pyrite
coal
Selenium
selenium
Inductively coupled plasma mass spectrometry
telluride
burial diagenesis
Mercury (metal)
Laser ablation
hydrothermal system
ablation
headwater
village
gold
mass spectrometry

Keywords

  • tellurium
  • coal
  • pyrite
  • Jurassic
  • selenium

Cite this

Tellurium enrichment in Jurassic coal, Brora, Scotland. / Bullock, Liam; Parnell, John; Perez, Magali; Feldmann, Joerg.

In: Minerals, Vol. 7, No. 12, 231, 23.11.2017, p. 1-13.

Research output: Contribution to journalArticle

Bullock, Liam ; Parnell, John ; Perez, Magali ; Feldmann, Joerg. / Tellurium enrichment in Jurassic coal, Brora, Scotland. In: Minerals. 2017 ; Vol. 7, No. 12. pp. 1-13.
@article{70f76cd5b41346d5ad97cfec0c2e2a00,
title = "Tellurium enrichment in Jurassic coal, Brora, Scotland",
abstract = "Mid-Jurassic pyritic coals exposed at the village of Brora, northern Scotland, UK, contain a marked enrichment of tellurium (Te) relative to crustal mean, average world coal compositions and British Isles Carboniferous coals. The Te content of Brora coal pyrite is more than one order of magnitude higher than in sampled pyrite of Carboniferous coals. The Te enrichment coincides with selenium (Se) and mercury (Hg) enrichment in the rims of pyrite, and Se/Te is much lower than in pyrites of Carboniferous coals. Initial pyrite formation is attributed to early burial (syn-diagenesis), with incorporation of Te, Se, Hg and lead (Pb) during later pyrite formation. The source of Te may have been a local hydrothermal system which was responsible for alluvial gold (Au) in the region, with some Au in Brora headwaters occurring as tellurides. Anomalous Te is not ubiquitous in coal, but may occur locally, and is detectable by laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS).",
keywords = "tellurium, coal, pyrite, Jurassic, selenium",
author = "Liam Bullock and John Parnell and Magali Perez and Joerg Feldmann",
note = "Acknowledgments: Funding provided by NERC Security of Supply programme (grant NE/L001764/1). The authors wish to thank three anonymous reviewers for their comments.",
year = "2017",
month = "11",
day = "23",
doi = "10.3390/min7120231",
language = "English",
volume = "7",
pages = "1--13",
journal = "Minerals",
issn = "2075-163X",
publisher = "MDPI",
number = "12",

}

TY - JOUR

T1 - Tellurium enrichment in Jurassic coal, Brora, Scotland

AU - Bullock, Liam

AU - Parnell, John

AU - Perez, Magali

AU - Feldmann, Joerg

N1 - Acknowledgments: Funding provided by NERC Security of Supply programme (grant NE/L001764/1). The authors wish to thank three anonymous reviewers for their comments.

PY - 2017/11/23

Y1 - 2017/11/23

N2 - Mid-Jurassic pyritic coals exposed at the village of Brora, northern Scotland, UK, contain a marked enrichment of tellurium (Te) relative to crustal mean, average world coal compositions and British Isles Carboniferous coals. The Te content of Brora coal pyrite is more than one order of magnitude higher than in sampled pyrite of Carboniferous coals. The Te enrichment coincides with selenium (Se) and mercury (Hg) enrichment in the rims of pyrite, and Se/Te is much lower than in pyrites of Carboniferous coals. Initial pyrite formation is attributed to early burial (syn-diagenesis), with incorporation of Te, Se, Hg and lead (Pb) during later pyrite formation. The source of Te may have been a local hydrothermal system which was responsible for alluvial gold (Au) in the region, with some Au in Brora headwaters occurring as tellurides. Anomalous Te is not ubiquitous in coal, but may occur locally, and is detectable by laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS).

AB - Mid-Jurassic pyritic coals exposed at the village of Brora, northern Scotland, UK, contain a marked enrichment of tellurium (Te) relative to crustal mean, average world coal compositions and British Isles Carboniferous coals. The Te content of Brora coal pyrite is more than one order of magnitude higher than in sampled pyrite of Carboniferous coals. The Te enrichment coincides with selenium (Se) and mercury (Hg) enrichment in the rims of pyrite, and Se/Te is much lower than in pyrites of Carboniferous coals. Initial pyrite formation is attributed to early burial (syn-diagenesis), with incorporation of Te, Se, Hg and lead (Pb) during later pyrite formation. The source of Te may have been a local hydrothermal system which was responsible for alluvial gold (Au) in the region, with some Au in Brora headwaters occurring as tellurides. Anomalous Te is not ubiquitous in coal, but may occur locally, and is detectable by laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS).

KW - tellurium

KW - coal

KW - pyrite

KW - Jurassic

KW - selenium

U2 - 10.3390/min7120231

DO - 10.3390/min7120231

M3 - Article

VL - 7

SP - 1

EP - 13

JO - Minerals

JF - Minerals

SN - 2075-163X

IS - 12

M1 - 231

ER -