Petrology, structure, and genesis of the asbestos-bearing ultramafic rocks of the Belvidere Mountain area in Vermont

Chidester, A.H.; Albee, A. L.; Cady, Wallace M.

doi:10.3133/pp1016

Cited by 19 publications

(26 citation statements)

References 16 publications

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“…EPMA demonstrated that amphiboles (n = 4) were calcic to sodic-calcic and aluminumbearing, with Mg/(Mg + Fe 2+ ) ratios of approximately 0.7, and classified as edenite, magnesiohornblende, magnesiokatophorite, and pargasite on the basis of their mineral chemistry (Leake et al 1997). Similar compositions were reported by Chidester et al (1978) for amphibole from the coarse amphibolites of the host Belvidere Mountain Formation. Figure 4 shows examples of chrysotile asbestos, a non-asbestiform amphibole, and fibrous tremolite from the site.…”

Section: Resultssupporting

confidence: 57%

“…XRD and Raman analysis found that the only other mineral present in this sample in amounts detectable by XRD was antigorite. Chidester et al (1978) reported finding a small amount of loose tremolite-actinolite asbestos intergrown with fibrous calcite at the Lowell quarry. A study of air filters collected during operation of the mine, mill, and bagging room found no amphiboles among fibers collected (Wylie and Bailey 1992).…”

Section: Resultsmentioning

confidence: 99%

“…Figure 4 shows examples of chrysotile asbestos, a non-asbestiform amphibole, and fibrous tremolite from the site. Amphiboles have been reported in the host rock, including fibrous tremolite in contact rock between blackwall and steatite (Chidester et al 1978) in addition to nonfibrous occurrences. To date, none of the amphiboles found in the tailings samples have been fibrous.…”

Section: Resultsmentioning

confidence: 99%

“…Chrysotile was mined from serpentinized ultramafic rocks that are believed to be portions of ophiolites emplaced during the Taconic orogeny (Van Baalen et al 1999). These rocks are part of a belt of serpentinites that extends northeastward into Quebec and also contains the well-known asbestos deposits at Thetford Mines (Chidester et al 1978). The mine operated from around 1900 until 1993 (Van Baalen et al 1999).…”

Section: Introductionmentioning

confidence: 99%

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Mineralogy of mine waste at the Vermont Asbestos Group mine, Belvidere Mountain, Vermont

Levitan

Hammarstrom

Gunter

et al. 2009

American Mineralogist

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Samples from the surfaces of waste piles at the Vermont Asbestos Group mine in northern Vermont were studied to determine their mineralogy, particularly the presence and morphology of amphiboles. Analyses included powder X-ray diffraction (XRD), optical microscopy, scanning electron microscopy (SEM), electron probe microanalysis (EPMA), and Raman spectroscopy. Minerals identified by XRD were serpentine-group minerals, magnetite, chlorite, quartz, olivine, pyroxene, and brucite; locally, mica and carbonates were also present. Raman spectroscopy distinguished antigorite and chrysotile, which could not be differentiated using XRD. Long-count, short-range XRD scans of the (110) amphibole peak showed trace amounts of amphibole in most samples. Examination of amphiboles in tailings by optical microscopy, SEM, and EPMA revealed non-fibrous amphiboles compositionally classified as edenite, magnesiohornblende, magnesiokatophorite, and pargasite. No fibrous amphibole was found in the tailings, although fibrous tremolite was identified in a sample of host rock. Knowledge of the mineralogy at the site may lead to better understanding of potential implications for human health and aid in designing a remediation plan.

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Section: Resultssupporting

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mineralogy of mine waste at the Vermont Asbestos Group mine, Belvidere Mountain, Vermont

Levitan

Hammarstrom

Gunter

et al. 2009

American Mineralogist

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“…It is made up of three large bodies at the surface: the Eden quarry, the Cortez Pond body (also known as C-area), and the Lowell quarry. This area has the largest known reserves of chrysotile asbestos in the eastern United States [30], comprising about 5% of rock quarried, and was actively mined for commercial asbestos until 1993. The Lowell deposit is a well-known mineral collecting area.…”

Section: Belvidere Mountainmentioning

confidence: 99%

Integrating Steel Production with Mineral Carbon Sequestration

Lackner¹,

Doby²,

Yegulalp³

et al. 2008

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Mineral sequestration, the disposal of carbon dioxide in the form of benign solid carbonate, provides a permanent and safe method of carbon dioxide disposal of virtually unlimited capacity. The objective of this project is to to develop a combination iron oxide production and carbon sequestration plant that will use serpentine ores as the source of iron and dispose of its own CO2. By using the same ore processing steps for carbon sequestration and iron ore production we increase the value of the carbon sequestration process and consequently reduce the cost of sequestration with this added value.Particularly important for justifying the feasibility of a combined iron production and mineral carbonation process for the mitigation of CO 2 generated by the iron and steel industry is the identification of locations where this process may be implemented. This identification is dependent both on the physical and chemical characteristics of the deposits themselves, as well as the current land-ownership and use in their location and proximity to iron processing plants and/or large sources of CO 2 . In this project we identify the locations of deposits, estimate the volume of mineral available, and summarize known geochemical data on major deposits as described in the geological literature.In developing the chemical pathways for a hydrometallurgical process we will further the identification of potential solvents. Finally, we will create a standardized process through which to characterize serpentine deposits in terms of carbon disposal capacity and iron and steel production capacity. 3 Keywords Executive SummaryHere we propose to develop a combination iron oxide production and carbon sequestration plant that will use serpentine ores as the source of iron and dispose of its own CO 2 --plus additional CO 2 from other sources --in the mineral tailings that are left after iron is separated. By using the same ore processing steps for carbon sequestration and iron ore production we increase the value of the carbon sequestration process and consequently reduce the cost of sequestration with this added value.1. Geographical information system (GIS) datasets describing surface geology were obtained for the majority of ultramafic-containing states and used to estimate surface area exposure of serpentinite and ultramafic resources. Regional and nationwide datasets filled in gaps where statewide data is not available. Various land use datasets were integrated to account for areas such as urban centers and designated wilderness to eliminate locations where it will not be politically feasible to operate a mineral sequestration plant. The east coast ultramafic resource surface area is approximately 1086.44 km 2 . After filters for land-use are applied, there are 976.10 km 2 suitable reserves. The west coast resources are much greater, at 8,730 km 2 and reducing to 6677 km 2 after land use is taken into account. With depths of at least 500 m available for economic mining and using the density of serpentine (2.55 g/cm 2 ), reserv...

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Talc mineralization of ultramafic affinity in the Eastern Desert of Egypt

El-Sharkawy¹

2000

Mineralium Deposita

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Petrology, structure, and genesis of the asbestos-bearing ultramafic rocks of the Belvidere Mountain area in Vermont

Cited by 19 publications

References 16 publications

Mineralogy of mine waste at the Vermont Asbestos Group mine, Belvidere Mountain, Vermont

Mineralogy of mine waste at the Vermont Asbestos Group mine, Belvidere Mountain, Vermont

Integrating Steel Production with Mineral Carbon Sequestration

Talc mineralization of ultramafic affinity in the Eastern Desert of Egypt

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