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D. A. Spears | Researchclopedia

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D. A. Spears

University of Sheffield ORCID

131

Works

4,184

Citations

38

h-index

89

i10-index

Research Topics

Coal and Its By-products Geochemistry and Geologic Mapping Geological and Geochemical Analysis

Affiliations

Sewanee: The University of the South2016–2016

Instituto Nacional del Carbón1993–2006

Virginia Division of Geology and Mineral Resources1998–1998

Xuchang University2001–2001

University of Sheffield1961–2025

Top Works

Mineral matter and trace elements in coals of the Gunnedah Basin, New South Wales, Australia

Colin R. Ward,D. A. Spears,et al.

1999244 citations

Clay minerals and soil interactions

Coal Properties and Utilization

Geochemistry and origin of elements in some UK coals

D. A. Spears,Yuyan Zheng

1999225 citations

The origin of tonsteins, an overview, and links with seatearths, fireclays and fragmental clay rocks

2011173 citations

The formation of sedimentary iron minerals

C. D. Curtis,D. A. Spears

1968161 citations

The fate of trace elements and bulk minerals in pulverized coal combustion in a power station

M. Rosa Martı́nez-Tarazona,D. A. Spears

1996128 citations

A geochemical and mineralogical investigation of some British and other European tonsteins

D. A. Spears,R. Kanaris‐Sotiriou

1979117 citations

The breakdown of British Coal Measure rocks

R. K. Taylor,D. A. Spears

1970109 citations

Mineral matter in coals: cleat minerals and their origin in some coals from the english midlands

D. A. Spears,Stephen Allen Caswell

198696 citations

Titanium in some Carboniferous sediments from Great Britain

D. A. Spears,R. Kanaris‐Sotiriou

197687 citations