Frank T. Dulong (Former Employee)
Science and Products
Filter Total Items: 47
RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL. RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL.
This study attempts to quantify some of the various origins of mineral matter. Data developed for the Upper Freeport coal bed indicates that mineral matter other than pyrite and calcite is primarily derived from the vegetal matter that ultimately became coal. Cathodoluminesence was used to verify that the quartz in the Upper Freeport coal is dominantly authigenic and not detrital in...
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong, L.P. Ruppert
Geologic factors that control mineral matter in coal Geologic factors that control mineral matter in coal
Elements other than organically derived and bound C, H, N, O, and S constitute mineral matter in coal. Mineral matter may consist of discrete minerals such as calcite, quartz, clays, and pyrite, and/or organic compounds that contain organically bonded elements such as Ca and CI. Processes that may affect the association and content of mineral matter are operable from the initial peat...
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong, J.J. Renton
The 57Fe Mössbauer parameters of pyrite and marcasite with different provenances The 57Fe Mössbauer parameters of pyrite and marcasite with different provenances
Eighteen pyrite and twelve marcasite samples which have different provenances have been investigated to determine the systematics of the influence of mineralogical and geological factors on the 57Fe Mössbauer spectra at 298 K. The following results have been obtained: there is no ambiguity in distinguishing single phase pyrite from single phase marcasite by means of 57Fe Mössbauer...
Authors
B.J. Evans, R. G. Johnson, F. E. Senftle, C. B. Cecil, F. Dulong
Appendices to Geology of contaminants in coal; Phase I, report on investigations Appendices to Geology of contaminants in coal; Phase I, report on investigations
No abstract available.
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong
Geology of contaminants in coal; Phase I, report of investigations Geology of contaminants in coal; Phase I, report of investigations
No abstract available.
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong
Science and Products
Filter Total Items: 47
RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL. RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL.
This study attempts to quantify some of the various origins of mineral matter. Data developed for the Upper Freeport coal bed indicates that mineral matter other than pyrite and calcite is primarily derived from the vegetal matter that ultimately became coal. Cathodoluminesence was used to verify that the quartz in the Upper Freeport coal is dominantly authigenic and not detrital in...
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong, L.P. Ruppert
Geologic factors that control mineral matter in coal Geologic factors that control mineral matter in coal
Elements other than organically derived and bound C, H, N, O, and S constitute mineral matter in coal. Mineral matter may consist of discrete minerals such as calcite, quartz, clays, and pyrite, and/or organic compounds that contain organically bonded elements such as Ca and CI. Processes that may affect the association and content of mineral matter are operable from the initial peat...
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong, J.J. Renton
The 57Fe Mössbauer parameters of pyrite and marcasite with different provenances The 57Fe Mössbauer parameters of pyrite and marcasite with different provenances
Eighteen pyrite and twelve marcasite samples which have different provenances have been investigated to determine the systematics of the influence of mineralogical and geological factors on the 57Fe Mössbauer spectra at 298 K. The following results have been obtained: there is no ambiguity in distinguishing single phase pyrite from single phase marcasite by means of 57Fe Mössbauer...
Authors
B.J. Evans, R. G. Johnson, F. E. Senftle, C. B. Cecil, F. Dulong
Appendices to Geology of contaminants in coal; Phase I, report on investigations Appendices to Geology of contaminants in coal; Phase I, report on investigations
No abstract available.
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong
Geology of contaminants in coal; Phase I, report of investigations Geology of contaminants in coal; Phase I, report of investigations
No abstract available.
Authors
C. B. Cecil, R.W. Stanton, F.T. Dulong