Phillip H. Larson

Minnesota State University, Mankato

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Ronald I. Dorn

Arizona State University

Garry L. Running

University of Wisconsin–Eau Claire

Douglas J. Faulkner

University of Wisconsin–Eau Claire

Tammy M. Rittenour

Utah State University

Yeong Bae Seong

Korea University

Randall J. Schaetzl

Michigan State University

Harry M. Jol

University of Wisconsin–Eau Claire

Ronald C. Schirmer

Minnesota State University, Mankato

Luke Burds

University of Wisconsin–Eau Claire

Richard J. Mataitis

University of Wisconsin–Eau Claire

Cooperative Institutions

United States Geological Survey

Geological Survey of Canada

Natural Resources Canada

Université du Québec à Montréal

University of Minnesota

Minnesota State University, Mankato

Université Laval

Arizona State University

Université de Montréal

Bedford Institute of Oceanography

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DEFINING THE GEOMORPHOLOGY OF CLIFF-TOP DUNES: CASE STUDY OF THE CHIPPEWA RIVER VALLEY, WI, USA

Abstracts with programs - Geological Society of America (2019)

Phillip H. Larson Jason Millett Luke Burds Richard J. Mataitis Garry L. Running

Cliff

10.1130/abs/2019am-338638

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Citations (0)

GEOMORPHOLOGY OF AEOLIAN SAND STRINGERS IN WESTERN WISCONSIN AND SOUTHEASTERN MINNESOTA

Abstracts with programs - Geological Society of America (2020)

Kenzie L. Shandonay Richard J. Mataitis Luke Burds Phillip H. Larson Mark W. Bowen

10.1130/abs/2020nc-347354

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Citations (0)

Autogenic incision and terrace formation resulting from abrupt late-glacial base-level fall, lower Chippewa River, Wisconsin, USA

Geomorphology (2016)

Douglas J. Faulkner Phillip H. Larson Harry M. Jol Garry L. Running Henry M. Loope

Outwash plain

Meltwater

Terrace (agriculture)

Alluvial fan

10.1016/j.geomorph.2016.04.016

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Citations (50)

Pediment response to drainage basin evolution in south-central Arizona

Physical Geography (2014)

Phillip H. Larson Ronald I. Dorn R. Evan Palmer Z. R. Bowles E. J. Harrison

AbstractThe Sonoran Desert portion of the Basin and Range physiographic province contains a number of streams that now flow across once-closed basins. We explore here the research questions of if and how granitic rock pediments respond to the transition from rimming endorheic basins to bordering through-flowing streams. Granitic rock pediments of the northern Usery and eastern McDowell Mountains once graded to the closed Miocene–Pliocene Pemberton basin that occupied the present-day location of the confluence of the Salt and Verde Rivers. The process of lake overflow, which integrated these rivers, first aggraded fill terraces that, in turn, caused aggradation of a mantle of transported grus on bedrock pediments. Subsequent episodic incision of the Salt and Verde rivers lowered the base level; this led to the development of erosional features such as rolling topography of a degrading pediment mantle; exposure of the former piedmont angle and its associated zones of enhanced bedrock decay and regolith carbonate; and exposure of spheroidally weathered bedrock and emerging tors, some of which experienced 20th century erosion. The granitic pediments of the former Pemberton Basin, which now transport grus to the Salt and Verde rivers, have actively adjusted to aggradational and degradational events associated with drainage integration and do not appear to be inherited from an ancient wet climatic interval.Keywords: drainage basin evolutionpedimentBasin and Rangefluvial terracecarbonatelandscape evolutiongranitic landscapesSonoran Desert AcknowledgmentsWe thank Tonto National Forest for permission to collect small samples for analysis. We thank Prime Lab at Purdue for the basic chemistry and cosmogenic measurements, and Matthew Jungers for assistance in computing burial ages.

Bedrock

Aggradation

10.1080/02723646.2014.931089

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Citations (16)

AEOLIAN GEOMORPHOLOGY AND GEOARCHEOLOGY OF THE KIWANIS SITE, CHIPPEWA RIVER VALLEY, WISCONSIN

Abstracts with programs - Geological Society of America (2020)

Luke Burds Phillip H. Larson Ronald C. Schirmer Garry L. Running Douglas J. Faulkner

10.1130/abs/2020nc-347758

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Citations (0)

An updated radiocarbon-based ice margin chronology for the last deglaciation of the North American Ice Sheet Complex

Quaternary Science Reviews (2020)

April S. Dalton Martin Margold Chris R. Stokes Lev Tarasov Arthur S. Dyke

Deglaciation

Chronology

Margin (machine learning)

10.1016/j.quascirev.2020.106223

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Citations (391)

Accounting for uncertainty in remotely-sensed measurements of river planform change

Earth-Science Reviews (2019)

Mitchell Donovan Patrick Belmont Bastiaan Notebaert Tyrel Coombs Phillip H. Larson

Planform

10.1016/j.earscirev.2019.04.009

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Citations (58)

How Rivers Get Across Mountains: Transverse Drainages

Annals of the American Association of Geographers (2016)

Phillip H. Larson Norman Meek John Douglass Ronald I. Dorn Yeong Bae Seong

Although mountains represent a barrier to the flow of liquid water across our planet and an Earth of impenetrable mountains would have produced a very different geography, many rivers do cross mountain ranges. These transverse drainages cross mountains through one of four general mechanisms: antecedence—the river maintains its course during mountain building (orogeny); superimposition—a river erodes across buried bedrock atop erodible sediment or sedimentary rock, providing a route across what later becomes an exhumed mountain range; piracy or capture—where a steeper gradient path captures a lower gradient drainage across a low relief interfluve; and overflow—a basin fills with sediment and water, ultimately breaching the lowest sill to create a new river. This article reviews research that aids in identifying the mechanism responsible for a transverse drainage, notes a major misconception about the power of headward eroding streams that has dogged scholarship, and examines the transverse drainage at the Grand Canyon in Arizona.

Bedrock

Sill

Mountain formation

Stream power

10.1080/24694452.2016.1203283

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Citations (12)

Drainage integration in extensional tectonic settings

Geomorphology (2021)

Phillip H. Larson Ronald I. Dorn Brian F. Gootee Yeong Bae Seong

10.1016/j.geomorph.2021.108082

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Citations (6)

Painting Yosemite Valley: A Case Study of Rock Coatings Encountered at Half Dome

Physical Geography (2012)

Phillip H. Larson Ronald I. Dorn

No prior research has documented the different types of rock coatings in Yosemite Valley, despite the evident black streaks down Yosemite Falls, the light granitic rock exposed by recent rock falls contrasting with dark rock coatings, and the millions of visitors who have photographed the coated rocks of Yosemite. This paper identifies the types of rock coatings found on Half Dome, in Yosemite Valley, assesses the hypothesis that the rock coatings of Yosemite are consistent with the landscape geochemical model of rock coating formation, and considers the relevance of equifinality. Eight types of rock coatings were identified: case-hardened surfaces, heavy metal skins, iron films, lithobiontic coatings, oxalate crusts, manganiferous rock varnish, silica glaze, and anthropogenic pigments. The landscape geochemical model of rock coating formation and the concept of equifinality both proved useful in this investigation.

Dome (geology)

Tufa

Equifinality

Rock Art

10.2747/0272-3646.33.2.165

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Citations (7)