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Sarah K. Carmichael Ph.D.

Geochemistry, Petrology, and Biomineralogy -- My interests involve reactive fluid flow and mineralization in all levels of the earth's crust, in both ancient and modern environments - through regional and contact metamorphism, metasomatism at mid-ocean ridges, and through microbially mediated reactions at the earth's surface.

There are 8 included publications by Sarah K. Carmichael Ph.D.:

TitleDateViewsBrief Description
Constraining reactions between MOR vent fluids and new oceanic crust: the hydrothermal upflow zone beneath M vent, 9°50'N EPR 2008 135 Conference Abstract
Formation of Replacement Dolomite in the Latemar Carbonate Buildup, Dolomites, Northern Italy: Part 1. Field Relations, Mineralogy, and Geochemistry 2008 484 Replacement dolomite in the Latemar carbonate buildup, northern Italy, formed when limestone was infiltrated by and reacted with Mg-rich fluid. It occurs in discrete bodies in sharp contact with unreacted limestone. The dolomite developed in a nearly...
Formation of Replacement Dolomite in the Latemar Carbonate Buildup, Dolomites, Northern Italy: Part 2. Origin of the Dolomitizing Fluid and the Amount and Duration of Fluid Flow 2008 584 Replacement dolomite in the Latemar carbonate buildup developed when limestone was infiltrated by reactive fluid. Minor-element, trace-element, and oxygen and carbon isotope compositions of dolomite and precursor limestone constrain the origin of the...
Mn(II)-oxidizing Bacteria are Abundant and Environmentally Relevant Members of Ferromanganese Deposits in Caves of the Upper Tennessee River Basin 2013 295 The upper Tennessee River Basin contains the highest density of our nation's caves; yet, little is known regarding speleogenesis or Fe and Mn biomineralization in these predominantly epigenic systems. Mn:Fe ratios of Mn and Fe oxide-rich biofilms, co...
A new model for the Kellwasser Anoxia Events (Late Devonian): Shallow water anoxia in an open oceanic setting in the Central Asian Orogenic Belt 2014 337 The Frasnian–Famennian mass extinction event devastated tropical marine ecosystems and ranks in the top six in taxonomic and ecological severity. The close stratigraphic association between the extinction and the Kellwasser Anoxia Events support a li...
The origin of replacement dolomite, Dolomites, northern Italy: Part 1 2005 149 Conference Abstract
The origin of replacement dolomite, Dolomites, northern Italy: Part 2 2005 121 Conference Abstract
Sustained Anthropogenic Impact in Carter Saltpeter Cave, Carter County, Tennessee and the Potential Effects On Manganese Cycling 2013 266 Anthropogenic impact is a pervasive problem in heavily trafficked cave systems and fecal contamination is equally problematic in many cave and karst waters worldwide. Carter Saltpeter Cave in Carter County, Tennessee exhibits Mn(III/IV) oxide coating...