Short Course on Tectonics and Topography
This presentation is the property of its rightful owner.
Sponsored Links
1 / 11

Short Course on Tectonics and Topography Universita’ degli Studi Pisa Aprile, 2005 Frank J. Pazzaglia Department of Earth and Environmental Sciences PowerPoint PPT Presentation


  • 65 Views
  • Uploaded on
  • Presentation posted in: General

Short Course on Tectonics and Topography Universita’ degli Studi Pisa Aprile, 2005 Frank J. Pazzaglia Department of Earth and Environmental Sciences Lehigh University 31 Williams Bethlehem, PA 18015 [email protected] Lecture 1. Bias of the Professor Types of Landscape Evolution Models

Download Presentation

Short Course on Tectonics and Topography Universita’ degli Studi Pisa Aprile, 2005 Frank J. Pazzaglia Department of Earth and Environmental Sciences

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Short Course on Tectonics and Topography

Universita’ degli Studi PisaAprile, 2005

Frank J. Pazzaglia

Department of Earth and Environmental Sciences

Lehigh University

31 Williams

Bethlehem, PA 18015

[email protected]

  • Lecture 1.

  • Bias of the Professor

  • Types of Landscape Evolution Models

    • Qualitative Models

    • Physical Models

    • Numeric Models

  • Key Principles in Process Geomorphology

  • What Drives Erosion – Climate or Relief ?


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

E. Wohl

D. Merritts

A. J. Stose

E. Knopf

L. Oglivie

conoplains (1902)

F. Bascom

Ci sto provandonon essere debole….

Tom Gardner

S. G. Wells

V. Baker

W. Bull

Tectonic geomorph

L. Lattman

J. Moss

S. A. Schumm

complex response, time and space scales

L. Leopold

hydraulic geometry (1957)

J. H. Mackin

Graded Rivers (1947)

W. Fenneman

physiographic provinces

S. Judson

A. Strahler

J. T. Hack

Dynamic Equilibrium (1960)

D. Johnson

Stream sculpture on the Atlantic Slope (1931)

Kirk Bryan

pediments, escarpment retreat

G. K. Gilbert

Geology of the Henry Mountains (1877)

W. M. Davis

The Rivers and Valleys of Pennsylvania (1889); The Geographic Cycle (1899)

J. W. Powell

Base level (1875)

Reds Wolman

Process fluvial geomorph

N. Southard Shaler

Bill Dietrich

Process Geomorphology

Josh Roering

Process Geomorphology

Tom Dunne

Hydrology

L. Agassiz

Kelin Whipple

Process Geomorphology


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Landscape Evolution Models:

The Basis of Tectonic and Topography Interaction

Qualitative

  • Classic paradigms, often philosophical, of how landscapes change with time.

  • Represent end-member conditions and are difficult to apply globally.

  • Useful in the sense that they are derived from observation and in the end, all modelsmust match observation.

  • Example: The Geographic Cycle; Dynamic Equilibrium

Physical

  • An attempt to reduce the size and complexity of nature to a space andtime scale consistent with observable changes over our (short) attention span andfunding cycle.

    • Unscaled reality

    • Scale models

    • Analogue models

    • Examples: Jurassic Tank at St. Anthony’s Falls Lab, MN; “Fog Box” of Universite’ de Rennes

Numeric

  • An attempt to reduce the size and complexity of nature through the use of mathematical expressions, each one representing a specific geomorphic process.

  • Examples: GOLEM, CHILD, ZSCAPE


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

King


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Gilbert – Hack, form = process


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

E = K Am Sn


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Disturbance of natural systems

Flume

Baltimore Canyon Trough

Atlantic (US) margin

Flux of eroded rock

(103km3 / yr)

time (m.y.)


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Thresholds


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Complex response


Short course on tectonics and topography universita degli studi pisa aprile 2005 frank j pazzaglia department of earth and environmental sciences

Process Linkage

“wet” millennia

Lateral incision, and widestrath during wet

Vertical incision, or at least a narrow strath during dry

“dry” millennia

Meyer et al., 1995


  • Login