Publications from 2020

Documenting the Geometry and Magnitude of Shortening at the Allegheny Front: Lycoming County, Pennsylvania, United States, Ashley Ace, Nadine McQuarrie, Peter B. Sak, Robert Grundy, and Barrett Lavergne

Magmatic Stoping During the Caldera-Forming Pomici di Base Eruption (Somma-Vesuvius, Italy) as a Fuel of Eruption Explosivity, Gianmarco Buono, Lucia Pappalardo, Chris Harris, Benjamin R. Edwards, and Paola Petrosino


Subsurface Weathering Revealed in Hillslope‐Integrated Porosity Distributions, Russell P. Callahan, Clifford S. Riebe, Sylvain Pasquet, Ken L. Ferrier, Dario Grana, Leonard S. Sklar, Nicholas J. Taylor, Brady A. Flinchum, Jorden L. Hayes, Bradley J. Carr, Peter C. Hartsough, Anthony T. O'Geen, and W. Steven Holbrook


Isotopic Composition of Lead White Pigments on Qeros: Implications for the Chronology and Production of Andean Ritual Drinking Vessels During the Colonial Era, Allison N. Curley, Alyson M. Thibodeau, Emily Kaplan, Ellen Howe, Ellen Pearlstein, and Judith Levinson

Hydrochronology of a Proposed Deep Geological Repository for Low- and Intermediate-Level Nuclear Waste in Southern Ontario from U–Pb Dating of Secondary Minerals: Response to Silurian and Cretaceous Events, D.W. Davis, C.N. Sutcliffe, Alyson M. Thibodeau, J. Spalding, D. Schneider, A. Cruden, J. Adams, A. Parmenter, M. Jensen, and Z. Zajacz

Global Mapping of Future Glaciovolcanism, Benjamin R. Edwards, William Hardy Kochtitzky, and Sarah Battersby

Ocean Acidification and Photic‐Zone Anoxia at the Toarcian Oceanic Anoxic Event: Insights from the Adriatic Carbonate Platform, Nicholas P. Ettinger, Toti E. Larson, Charles Kerans, Alyson M. Thibodeau, Kelly E. Hattori, Sean M. Kacur, and Rowan C. Martindale

Reconciling Chemical Weathering Rates Across Scales: Application of Uranium-Series Isotope Systematics in Volcanic Weathering Clasts from Basse-Terre Island (French Guadeloupe), Jiye Guo, Lin Ma, Jerome Gaillardet, Peter B. Sak, Yvette Pereyra, and Jacqueline Engel

An Historical Geoarchaeological Approach to Sourcing an Eighteenth Century Building Stone: Use of Aquia Creek Sandstone in Christ Church, Lancaster County, VA, USA, Marcus M. Key, Jr.; Spencer B. Lieber; and Robert J. Teagle

Effect of Removal of Organic Material on Stable Isotope Ratios in Skeletal Carbonate from Taxonomic Groups with Complex Mineralogies, Marcus M. Key, Jr.; Abigail M. Smith; Niomi J. Phillips; and Jeffrey S. Forrester


Comments on ‘Area Changes of Glaciers on Active Volcanoes in Latin America’ by Reinthaler and others (2019), William Hardy Kochtitzky and Benjamin R. Edwards


Quantifying Shortening Across the Central Appalachian Fold-Thrust Belt, Virginia and West Virginia, USA: Reconciling Grain-, Outcrop-, and Map-Scale Shortening, Daniel Lammie, Nadine McQuarrie, and Peter B. Sak

Hydrochronology of a Proposed Deep Geological Repository for Low- and Intermediate-Level Nuclear Waste in Southern Ontario from U–Pb Dating of Secondary Minerals: Response to Alleghanian Events, C.N. Sutcliffe, Alyson M. Thibodeau, D.W. Davis, Ihsan Al-Aasm, A. Parmenter, Z. Zajacz, and M. Jensen

Publications from 2019


The Record of the Transition From an Oceanic Arc to a Young Continent in the Talamanca Cordillera, Esteban Gazel, Jorden L. Hayes, Andres Ulloa, Aristides Alfaro, Drew S. Coleman, and Michael J. Carr


Pargasite-Bearing Vein in Spinel Lherzolite from the Mantle Lithosphere of the North America Cordillera, Edward D. Ghent, Benjamin R. Edwards, and James K. Russell


Porosity Production in Weathered Rock: Where Volumetric Strain Dominates Over Chemical Mass Loss, Jorden L. Hayes, Clifford S. Riebe, W. Steven Holbrook, Brady A. Flinchum, and Peter C. Hartsough

Coevolution of Post-Palaeozoic Arthropod Basibiont Diversity and Encrusting Bryozoan Epibiont Diversity?, Marcus M. Key, Jr. and Carrie E. Schweitzer

Quantifying Weathering Rind Formation Rates Using in situ Measurements of U-Series Isotopes with Laser Ablation and Inductively Coupled Plasma-Mass Spectrometry, Lin Ma, Anthony Dosseto, Jerome Gaillardet, Peter B. Sak, and Susan Brantley

Synchrotron X-Ray Tomographic Imaging of Embedded Fossil Invertebrates in Aboriginal Stone Artefacts from Western Australia: Implications for Sourcing, Distribution and Chronostratigraphy, I. Ward; Marcus M. Key, Jr.; M.J. O'Leary; A. Carson; J. Shaw; and A. Maksimenko

Insight into the Procurement and Distribution of Fossiliferous Chert Artefacts Across Southern Australia from the Archival Record, Ingrid Ward; Marcus M. Key, Jr.; Rosine Riera; Annie Carson; and Michael O'Leary

Publications from 2018

Lead Isotopes as Particulate Contaminant Tracers and Chronostratigraphic Markers in Lake Sediments in Northeastern North America, Carol A.L. Cheyne, Alyson M. Thibodeau, Gregory F. Slater, and Bridget A. Bergquist


Critical Zone Structure Under a Granite Ridge Inferred From Drilling and Three-Dimensional Seismic Refraction Data, Brady A. Flinchum, W. Steven Holbrook, Daniella Rempe, Seulgi Moon, Clifford S. Riebe, Bradley J. Carr, Jorden L. Hayes, James St. Clair, and Marc Philipp Peters


Improved Estimates of Glacier Change Rates at Nevado Coropuna Ice Cap, Peru, William Hardy Kochtitzky, Benjamin R. Edwards, Ellyn M. Enderlin, Jersy Marino, and Nelida Marinque

From Unweathered Core to Regolith in a Single Weathering Andesitic Clast: Rates and Trends of in Situ Chemical Weathering on a Tropical Volcanic Island (Basse Terre Island, French Guadeloupe), Peter B. Sak, Mariah Murphy, Lin Ma, Jerome Gaillardet, Elizabeth M. Herndon, Susan L. Brantley, and Christopher Daniel

Relating Soil Gas to Weathering Using Rock and Regolith Geochemistry, Gary E. Stinchcomb, Hyojin Kim, Elizabeth A. Hasenmueller, Pamela L. Sullivan, Peter B. Sak, and Susan L. Brantley


Was Aztec and Mixtec Turquoise Mined in the American Southwest?, Alyson M. Thibodeau, Leonardo López Luján, David J. Killick, Frances F. Berdan, and Joaquin Ruiz

Publications from 2017

Canyon Creek Revisited: New Investigations of a Late Prehispanic Turquoise Mine, Arizona, USA, Saul L. Hedquist, Alyson M. Thibodeau, John R. Welch, and David J. Killick

Bryozoan Epibiosis on Fossil Crabs: A Rare Occurrence From the Miocene of Iran, Marcus M. Key, Jr.; Matúš Hyžný; Erfan Khosravi; Natalia Hudáčková; Ninon Robin; and Majid Mirzaie Ataabadi

Challenging the ‘Offshore Hypothesis’ for Fossiliferous Chert Artefacts in Southwestern Australia and Consideration of Inland Trade Routes, Michael J. O'Leary; Ingrid Ward; Marcus M. Key, Jr.; Mackenze S. Burkhart; Chris Rawson; and Noreen Evans

Do Mercury Isotopes Record the Signature of Massive Volcanism in Marine Sedimentary Records?, Alyson M. Thibodeau and Bridget A. Bergquist

Publications from 2016

Quantifying Chemical Weathering Rates Along a Precipitation Gradient on Basse-Terre Island, French Guadeloupe: New Insight From U-series Isotopes in Weathering Rinds, Jacqueline M. Engel, Lin Ma, Peter B. Sak, Jerome Gaillardet, Minghua Ren, Mark A. Engle, and Susan L. Brantley


Sourcing a Stone Paver from the Colonial St. Inigoes Manor, Maryland, Marcus M. Key, Jr.; Leslie P. Milliman; Michael A. Smolek; and Silas D. Hurry

Intracolony Variation in Colony Morphology in Reassembled Fossil Ramose Stenolaemate Bryozoans from the Upper Ordovician (Katian) of the Cincinnati Arch Region, USA, Marcus M. Key, Jr.; Patrick N. Wyse Jackson; and Stephen H. Felton

Subglacial Lava Propagation, Ice Melting and Heat Transfer During Emplacement of an Intermediate Lava Flow in the 2010 Eyjafjallajökull Eruption, Björn Oddsson, Magnús T. Gudmundsson, Benjamin R. Edwards, Thorvaldur Thordarson, Eyjólfur Magnússon, and Gunnar Sigurðsson

Glaciovolcanism on Earth and Mars: Products, Processes, and Palaeoenvironmental Significance, John L. Smellie and Benjamin R. Edwards


Pretreatment for Removal of Organic Material is not Necessary for X-Ray-Diffraction Determination of Mineralogy in Temperate Skeletal Carbonate, Abigail M. Smith; Marcus M. Key, Jr.; Zoe E. Henderson; V. Christine Davis; and David J. Winter


Mercury Anomalies and the Timing of Biotic Recovery Following the End-Triassic Mass Extinction, Alyson M. Thibodeau, Kathleen Ritterbush, Joyce A. Yager, A. Joshua West, Yadira Ibarra, David J. Bottjer, William M. Berelson, Bridget A. Bergquist, and Frank A. Corsetti

Investigation of a Diabase-Derived Regolith Profile from Pennsylvania: Mineralogy, Chemistry and Fe Isotope Fractionation, Tiffany Yesavage, Gary E. Stinchcomb, Matthew S. Fantle, Peter B. Sak, Alexander Kasznel, and Susan L. Brantley

Publications from 2015

Overview of the Precursors and Dynamics of the 2012–13 Basaltic Fissure Eruption of Tolbachik Volcano, Kamchatka, Russia, Alexander Belousov, Marina Belousova, Benjamin R. Edwards, Anna Volynets, and Dmitry Melnikov

The Tolbachik Volcanic Massif: A Review of the Petrology, Volcanology and Eruption History Prior to the 2012–2013 Eruption, T.G. Churikova, B.N. Gordeychik, Benjamin R. Edwards, V.V. Ponomareva, and E.A. Zelenin

Observations on Lava, Snowpack and their Interactions During the 2012–13 Tolbachik Eruption, Klyuchevskoy Group, Kamchatka, Russia, Benjamin R. Edwards, Alexander Belousov, Marina Belousova, and Dmitry Melnikov

Introduction to the 2012–2013 Tolbachik Eruption Special Issue, Benjamin R. Edwards, Alexander Belousov, Marina Belousova, and Anna Volynets

Using a Mathematical Model of a Weathering Clast to Explore the Effects of Curvature on Weathering, M.I. Lebedeva, Peter B. Sak, L. Ma, and S.L. Brantley

Isotopic Evidence for the Provenance of Turquoise in the Southwestern United States, Alyson M. Thibodeau, David J. Killick, Saul L. Hedquist, John T. Chesley, and Joaquin Ruiz

Monitoring of the Volcanic Rock Compositions During the 2012–2013 Fissure Eruption at Tolbachik Volcano, Kamchatka, Anna O. Volynets, Benjamin R. Edwards, Dmitry Melnikov, Anton Yakushev, and Irina Griboedova

Publications from 2014


Propagation Style Controls Lava-Snow Interactions, Benjamin R. Edwards, A. Belousov, and M. Belousova

The Ridges of Europa: Extensions of Adjacent Topography onto their Flanks, Richard Greenberg and Peter B. Sak

Evolution of a Subglacial Basaltic Lava Flow Field: Tennena Volcanic Center, Mount Edziza Volcanic Complex, British Columbia, Canada, Jefferson D.G. Hungerford, Benjamin R. Edwards, Ian P. Skilling, and Barry I. Cameron

ASTER and DEM Change Assessment of Glaciers Near Hoodoo Mountain, British Columbia, Canada, Jeffrey S. Kargel, Gregory J. Leonard, Roger D. Wheate, and Benjamin R. Edwards


Energy, Global Warming, and Student Behavior, Marcus M. Key, Jr.

Use of Fossil Bryozoans as Provenance Indicators for Dimension Stones, Marcus M. Key, Jr. and Patrick N. Wyse Jackson

Use of Fossil Bryozoans in Sourcing Lithic Artifacts, Marcus M. Key, Jr.; Patrick N. Wyse Jackson; Lauren W. Falvey; and Barbara J. Roth

A Novel Approach to Lead Isotope Provenance Studies of Tin and Bronze: Applications to South African, Botswanan and Romanian Artifacts, Lisa J. Molofsky, David Killick, Mihai N. Ducea, Monica Macovei, John T. Chesley, Joaquin Ruiz, Alyson M. Thibodeau, and Gheorghe C. Popescu

Geochemical and Lithostratigraphic Constraints on the Formation of Pillow-Dominated Tindars from Undirhlíðar Quarry, Reykjanes Peninsula, Southwest Iceland, Meagan Pollock, Benjamin R. Edwards, Steinunn Hauksdóttir, Rebecca Alcorn, and Lindsey Bowman


Tuyas: A Descriptive Genetic Classification, J.K. Russell, Benjamin R. Edwards, Lucy Porritt, and C. Ryane


Significance of the Deformation History within the Hinge Zone of the Pennsylvania Salient, Appalachian Mountains, Peter B. Sak, Mary Beth Gray, and Zeshan Ismat

Reply to Letter on “Coal-Tar-Based Sealcoated Pavement: A Major PAH Source to Urban Stream Sediments.'", Amy E. Witter and Peter B. Sak

Response to O’Reilly’s Second Letter to the Editor on “Coal-Tar-Based Sealcoated Pavement: A Major PAH Source to Urban Stream Sediments'", Amy E. Witter and Peter B. Sak

Epizoic Bryozoans on Cephalopods Through the Phanerozoic: A Review, Patrick N. Wyse Jackson and Marcus M. Key, Jr.

Epizoozoan Trepostome Bryozoans on Nautiloids from the Upper Ordovician (Katian) of the Cincinnati Arch Region, U.S.A.: An Assessment of Growth, Form, and Water Flow Dynamics, Patrick N. Wyse Jackson; Marcus M. Key, Jr.; and Stephen P. Coakley

Publications from 2013

Another "Great Tolbachik" Eruption?, Benjamin R. Edwards, Alexander Belousov, Marina Belousova, Anna Volynets, Dmitry Melnikov, Sergey Chirkov, Sergey Senyukov, Evgenii Gordeev, Yaroslav Muraviev, Pavel Izbekov, and Yury Demianchuk

Insights on Lava-Ice/Snow Interactions from Large-Scale Basaltic Melt Experiments, Benjamin R. Edwards, Jeffrey Karson, Robert Wysocki, Einat Lev, Ilya Binderman, and Ulrich Kueppers

Stable Isotope Profiling in Modern Marine Bryozoan Colonies Across the Isthmus of Panama, Marcus M. Key, Jr.; Paige M. Hollenbeck; Aaron O'Dea; and William P. Patterson

Paleoenvironmental Reconstruction of the Early to Middle Miocene Central Paratethys Using Stable Isotopes from Bryozoan Skeletons, Marcus M. Key, Jr.; Kamil Zágoršek; and William P. Patterson

Neogene Rejuvenation of Central Appalachian Topography: Evidence for Differential Rock Uplift From Stream Profiles and Erosion Rates, Scott R. Miller, Peter B. Sak, Eric Kirby, and Paul R. Bierman

Pyroclastic Passage Zones in Glaciovolcanic Sequences, James K. Russell, Benjamin R. Edwards, and Lucy A. Porritt


Not All Sponges Will Thrive in a High-CO2 Ocean: Review of the Mineralogy of Calcifying Sponges, Abigail M. Smith; Jade Berman; Marcus M. Key, Jr.; and David J. Winter

High Precision Isotopic Analyses of Lead Ores from New Mexico by MC-ICP-MS: Implications for Tracing the Production and Exchange of Pueblo IV Glaze-Decorated Pottery, Alyson M. Thibodeau, Judith A. Habicht-Mauche, Deborah L. Huntley, John T. Chesley, and Joaquin Ruiz


IODP Expedition 334: An Investigation of the Sedimentary Record, Fluid Flow and State of Stress on Top of the Seismogenic Zone of an Erosive Subduction Margin, Paola Vannucchi, Kohtaro Ujiie, Nicole Stroncik, IODP Expedition 334 Scientific Party, and Peter B. Sak

Rapid Pulses of Uplift, Subsidence, and Subduction Erosion Offshore Central America: Implications for Building the Rock Record of Convergent Margins, Paola Vannuchi, Peter B. Sak, Jason P. Morgan, Ken’ichi Ohkushi, Kohtaro Ujiie, and IODP Expedition 334 Shipboard Scientists

Publications from 2012

The Effect of Curvature on Weathering Rind Formation: Evidence from Uranium-Series Isotopes in Basaltic Andesite Weathering Clasts in Guadeloupe, Lin Ma, Francois Chabaux, Eric Pelt, Mathieu Granet, Peter B. Sak, Jerome Gaillardet, Marina Lebedeva, and Susan L. Brantley

Unraveling the Central Appalachian Fold-Thrust Belt, Pennsylvania: The Power of Sequentially Restored Balanced Cross Sections for a Blind Fold-Thrust Belt, Peter B. Sak, Nadine McQuarrie, Benjamin P. Oliver, Natasha Lavdovsky, and Margaret S. Jackson

Lead Isotope Analysis as a New Method for Identifying Material Culture Belonging to the Vázquez de Coronado Expedition, Alyson M. Thibodeau, John T. Chesley, and Joaquin Ruiz

An Alternative Approach to the Prehispanic Turquoise Trade, Alyson M. Thibodeau, John T. Chesley, Joaquin Ruiz, David J. Killick, and Arthur Vokes

Publications from 2011

Soil Profiles as Indicators of Mineral Weathering Rates and Organic Interactions for a Pennsylvania Diabase, E.M. Hausrath, A.K. Navarre-Sitchler, Peter B. Sak, J.Z. Williams, and S.L. Brantley

Stream Channel Network Analysis Applied to Colony-wide Feeding Structures in a Permian Bryozoan from Greenland, Marcus M. Key, Jr.; Patrick N. Wyse Jackson; and Louis J. Vitiello

A Reactive-Transport Model for Weathering Rind Formation on Basalt, Alexis Navarre-Sitchler, Carl I. Steefel, Peter B. Sak, and Susan L. Brantley

Publications from 2010

Paleoecology of Commensal Epizoans Fouling Flexicalymene (Trilobita) from the Upper Ordovician, Cincinnati Arch Region, USA, Marcus M. Key, Jr.; Gregory A. Schumacher; Loren E. Babcock; Robert C. Frey; William P. Heimbrock; Stephen H. Felton; Dan L. Cooper; Walter B. Gibson; Debbie G. Scheid; and Sylvester A. Schumacher


Provenance of the Stone Pavers in Christ Church, Lancaster Co., Virginia, Marcus M. Key, Jr.; Robert J. Teagle; and Treleven Haysom

Controls on Rind Thickness on Basaltic Andesite Clasts Weathering in Guadeloupe, Peter B. Sak, Alexis K. Navarre-Sitchler, Christine E. Miller, Christopher C. Daniel, Jerome Gaillardet, Heather L. Buss, Marina I. Lebedeva, and Susan L. Brantley

Publications from 2009


C14 Age Control on a Rappahannock Native American Site on Totuskey Creek (44RD0206) in Richmond County, Virginia, Marcus M. Key, Jr.; Steven Vaughn; Todd H. Davis; and William Parr

Publications from 2008

Weathering of the Rio Blanco Quartz Diorite, Luquillo Mountains, Puerto Rico: Coupling Oxidation, Dissolution, and Fracturing, Heather L. Buss, Peter B. Sak, Samuel M. Webb, and Susan L. Brantley

Bryozoa from the Ordovician (Caradoc) of Courtown, County Wexford, Ireland, Caroline J. Buttler; Patrick N. Wyse Jackson; and Marcus M. Key, Jr.

Bryozoan Studies 2007 : Proceedings of the 14th International Bryozoology Association Conference, Boone, North Carolina, July 1-8, 2007, Steven J. Hageman; Marcus M. Key, Jr.; and Judith E. Winston

Basalt Weathering Rates on Earth and the Duration of Liquid Water on the Plains of Gusev Crater, Mars, Elisabeth M. Hausrath, Alexis K. Navarre-Sitchler, Peter B. Sak, Carl I. Steefel, and Susan L. Brantley

A Stable Isotope Test for the Origin of Fossil Brown Bodies in Trepostome Bryozoans from the Ordovician of Estonia, Marcus M. Key, Jr.; Patrick N. Wyse Jackson; Kristen E. Miller; and William P. Patterson

Uranium–Thorium Chronometry of Weathering Rinds: Rock Alteration Rate and Paleo-Isotopic Record of Weathering Fluids, E. Pelt, F. Chabaux, C. Innocent, A.K. Navarre-Sitchler, Peter B. Sak, and S.L. Brantley

Publications from 2007

Upper Ordovician Bryozoa from the Montagne de Noire, Southern France, Andrej Ernst and Marcus M. Key, Jr.

The Strange Case of the Earliest Silver Extraction by European Colonists in the New World, Alyson M. Thibodeau, David J. Killick, Joaquin Ruiz, John T. Chesley, K. Deagan, J.M. Cruxent, and W. Lyman

Borings in Trepostome Bryozoans from the Ordovician of Estonia: Two Ichnogenera Produced by a Single Maker, a Case of Host Morphology Control, Patrick N. Wyse Jackson and Marcus M. Key, Jr.

Publications from 2006

Growth of the Bryozoan Pentapora Fascialis (Cheilostomata, Ascophora) Around Submarine Freshwater Springs in the Adriatic Sea, Silvia Cocito; Maja Novosel; Zoran Pasarić; and Marcus M. Key, Jr.

Skeletal Mineralogy of Bryozoans: Taxonomic and Temporal Patterns, Abigail M. Smith; Marcus M. Key, Jr.; and Dennis P. Gordon

Publications from 2005

Stable Isotope Evidence for Diagenesis of the Ordovician Courtown and Tramore Limestones, South-Eastern Ireland, Marcus M. Key, Jr.; Patrick N. Wyse Jackson; William P. Patterson; and M. Dustin Moore

Publications from 2004

Mineral Dissolution at the Granite-Saprolite Interface, H.L. Buss, S.L. Brantley, Peter B. Sak, and A.F. White


Active Thrusting in the Inner Forearc of an Erosive Convergent Margin, Pacific Coast, Costa Rica, Donald M. Fisher, Thomas W. Gardner, Peter B. Sak, Joanna D. Sanchez, Katherine Murphy, and Paola Vannucchi

Processes Controlling Weathering Rind Advancement on Costa Rican Basalt Clasts, A.K. Navarre, S.L. Brantley, and Peter B. Sak


Effects of Subducting Seafloor Roughness on Upper Plate Vertical Tectonism: Osa Peninsula, Costa Rica, Peter B. Sak, Donald M. Fisher, and Thomas W. Gardner

Rates of Weathering Rind Formation on Costa Rican Basalt, Peter B. Sak, Donald M. Fisher, Thomas W. Gardner, Katherine Murphy, and Susan L. Brantley

Controls, Variation, and a Record of Climate Change in Detailed Stable Isotope Record in a Single Bryozoan Skeleton, Abigail M. Smith and Marcus M. Key, Jr.

Stable Isotope Values in Modern Bryozoan Carbonate from New Zealand and Implications for Paleoenvironmental Interpretation, Abigail M. Smith; Campbell S. Nelson; Marcus M. Key, Jr.; and William P. Patterson