Amherst College (2006)

TABLE OF CONTENTS

THE KECK GEOLOGY CONSORTIUM: HISTORY AND PROGRAM 2005

Canada:

Paleoenvironmental Reconstruction of Polar Miocene and Pliocene Forests From The Western Canadian Arctic
Christopher J. Williams 2

Morphological Analysis of Late Tertiary Picea and Pinus Cones in The Western Canadian Arctic
Wesley Court 8

Using Fossil Trees to Estimate Paleoclimate of Banks Island, Arctic Canada and The Effects of Modern Climate Change on The Arctic Environment
Emily Mendell 14

Woody Debris Lenses Paleoenvironmental Archives
Jennifer Murphy 20 

The Rise and Demise of a Holocene Coral Reef Complex, Dominican Republic: The Coral-Climate Connection
Lisa Greer, Al Curran, Bill Patterson, Neil Tibert 27

Large Serpulid Worm Tube Aggregates Indicate an Abrupt Mid-Holocene Transition From Marine to Restricted Hyposaline Conditions
Whitney Doss 33

High-Resolution Carbon and Oxygen Isotope and Taphonomy Records From Cominican Acropora Cervicornis Coral and Implications For Mid-Holocene Climate
Kelsey Dyck 38

Dating and Stable Isotope Analyses of Acropora Cervicornis Growth in The Enriquillo Valley, Dominican Republic.
Julia Elizabeth Jackson 44

Paleosalinity History of a Holocene Lagoon in The Enriquillo Valley, Dominican Republic: Pore Morphometrics And Isotope Geochemistry Of Ostracoda
Pamela Medley 49

Mid-Holocene Climate Change in Southwestern Dominican Republic: Proxy Evidence From Stable Isotope Values and Molluscan Indices
Jean R. Taggart 55

High and Low Resolution Stable Isotope Profiles of Holocene Bivalve Shells From The Dominican Republic
Andrew C. Taylor 61

Stable Isotopes in Early-Holocene Acropora Cervicornis Corals From The Enriquillo Valley, Dominican Republic
Lida Teneva 67

Investigation of The Stratigraphic Contact Between Coral Reef Colonies And Serpulid Tube/Tufa Mounds (Mid-Holocene) of The Enriquillo Valley, Dominican Republic: Paleoenvironmental Implications
Kelsey Winsor 73

The Rise and Demise of a Holocene Coral Reef Complex, Dominican Republic: The Coral-Climate Connection
Tara Curtin, John Halfman & Robert Gaines 79

Seismic Stratigraphy and Depositional Architecture of Holocene Sediment in Keuka Lake, NY
Robert F. Aspinwall 85

Going With The Flow: Evidence For Changes In Circulation in Seneca Lake, NY During The Holocene
Megan Crocker 90

Inorganic and Organic Carbon Analysis of Lacustrine Sediments, Canadaigua Lake, NY
Wesley Darden 95

Getting to The Bottom of It: Holocene Climate Change In Keuka Lake, NY.
Davin Lyons 99

Reflections on Mud: Holocene Climate Variability Recorded by Laminated Sediments In Canandaigua Lake, NY
Clare K. Morgan 104

Sedimentation and Indicators of Holocene Climate Change in Keuka Lake, New York
Benjamin Petrick 109

High Resolution Mapping of Holocene Sediments, Canandaigua Lake, New York
Hannah Woodson 114

Minnesota 119

Precambrian Evolution of Minnesota
John Craddock, Karl Wirth and Cameron Davidson 120

Petrology of a System of Granophyre Dikes in The Beaver Bay Complex in Beaver Bay, Minnesota
Matt Andring 126

Detrital Zircon Age Analysis of The Fond Du Lac and Hinckley Sandstone Formations of Northern Minnesota
Lee Finley-Blasi 131

Petrogenesis of a Granite Xenolith in The 1.1 GA Midcontinent Rift at Sliver Bay, MN
Natalie Juda 136

Minimum Age and Provenance of The Correlated Thomson and Rove Formations of Eastern Minnesota
Laura Kerber 142

Provenance Analysis of The Marquette Range Supergroup Sedimentary Rocks Using U-PB Isotope Geochemistry on Detrital Zircons By LA-ICP-MS
Rebekah Lundquist 147

Using Anisotropy of Magnetic Susceptibility to Determine Flow Directions of The Devil Track and Kimball Creek Rhyolites
Dhiren R. Patel 152

The Anisotropic Magnetic Susceptibility of Proterozoic Northshore Volcanic Rhyolites, Keweenaw Rift
Ryan Porter 157

Provenance and Tectonic Setting of The Paleoproterozoic Denham Formation in East-Central Minnesota
Sarah Vorhies 161

U-PB Detrital Zircon Provenance of The Proterozoic Nopeming and Puckwunge Formations Northeastern Minnesota
Erin Walker 166

Montana 170

Exploring The Proterozoic Big Sky Orogeny In Southwest Montana
Tekla A. Harms, John B. Brady, John T. Cheney 171

Petrology of Banded Iron Formation and Phyllite in The Standard Creek Contact Aureole, Southern Gravelly Mountains, Montana
Alyssa Doody 177

Protolith and Tectonic Setting of Quartzofeldspathic Gneisses of The Highland Mountains, Greenhorn Range and Alder Gulch; Southwest Montana
Emily Fertig 183

Geochemistry of Quartzofelspathic Gneisses and Theirgranitic Intrusives From The Gravelly Range, Montana
Dudley Braden Fitz-Gerald 189

A Regional Study of Metamorphosed Pelitic Rocks in Southwestern Montana
Deanna Gerwin 193

Kinematic Analysis of a Proposed Gneiss Dome and Possible Big Sky Orogeny Structure, Highland Mountains, Southwest Montana
P. Tyler Hannah 198

Low Grade Precambrian Rocks of The Central Gravelly Range, SW Montana
Elizabeth Klein 203

New Evidence For The Proterozoic Big Sky Orogeny Recorded In Biotite-Garnet-Sillimanite Gneisses From Mylonitic Zones In The Highland Mountains, Montana
Julia Labadie 208

Metamorphism Of Precambrian Rocks in The Southern Highland Mountains, Southwestern Montana
Jessica A. Matthews 213

Geochemistry of Metamorphosed Proterozoic(?) Mafic Dikes and Sills, Highland Mountains, Montana
Stephanie J. Moore 218

Shearing in The Mylonites of The Mcatee Bridge Ridge, Montana, USA: Compressional Shearing In The Big Sky Orogeny
Arthur Rose Schwab 225

Geochemistry of Archean (?) Amphibolites in Southwestern Montana
Eric Siegel 230