Tectonically Active Landscapes
1. Edition March 2009
320 Pages, Hardcover
Wiley & Sons Ltd
Short Description
Landscapes are mainly hillslopes with streams occupying less than 10% of drainage-basin areas. This book emphasizes tectonic geomorphology of hills, and treats the network of stream channels as the connecting link between upstream and downstream parts of a fluvial system.
This book explores how mountainous landscapes respond to tectonic deformation. It integrates previously unpublished concepts and ideas with recent articles about hills and streams. Readers will learn which landforms change quickly in response to uplift, which parts of the landscape are slowest to adjust to tectonic perturbations, and which landform characteristics are most useful for describing tectonically active and inactive terrains.
Study areas include diverse landscapes and tectonic settings: seacoasts, soil-mantled hills, and lofty mountains. The humid Southern Alps of New Zealand change quickly because of rapid uplift and erosion. The semiarid Panamint Range of southeastern California has such miniscule annual stream power that tectonic landforms persist for millions of years.
Tectonically Active Landscapes addresses diverse key topics about tectonics and topography. It is essential reading for research geologists and advance-level undergraduate and graduate students in the earth sciences.
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x.
PART 1 -- TECTONIC SETTINGS AND SCOPE OF INQUIRY.
1 Study Regions.
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.
1.2 North America-Pacific Plate Boundary . . . . . . . . . . . . . . . . . 4.
1.3 Australia-Pacific Plate Boundary . . . . . . . . . . . . . . . . . . . 16.
1 4 India-Asia Plates Collision . . . . . . . . . . . . . . . . . . . . . 20.
1 5 Aegean Transtension . . . . . . . . . . . . . . . . . . . . . . . 21.
PART 2 -- RESPONSES OF HILLSLOPES TO BEDROCK UPLIFT.
2 Drainage Basins.
2.1 Hydraulic Coordinates . . . . . . . . . . . . . . . . . . . . . . . 26.
2.2 Basin Shapes . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.
2.3 Divide Migration and Stream Capture . . . . . . . . . . . . . . . . . 30.
2.4 Tectonically Translocated Watersheds . . . . . . . . . . . . . . . . . 43.
3 Hillslopes.
3.1 Hillslope Model Boundaries . . . . . . . . . . . . . . . . . . . . . 49.
3.2 Late Quaternary Tectonic Deformation of the Diablo Range Study Area . . . 50.
3.3 Sediment Flux and Denudation Rates . . . . . . . . . . . . . . . . . 56.
3.4 Ridgecrests . . . . . . . . . . . . . . . . . . . . . . . . . . . 57.
3.5 Canyonlands 62.
3.6. Cross-Valley Shapes . . . . . . . . . . . . . . . . . . . . . . . . 72.
3.7 Tectonic Signatures in Hillslopes . . . . . . . . . . . . . . . . . . . 77.
4 Tectonic Controls on Hillslope Denudation.
4.1 Sediment Yield . . . . . . . . . . . . . . . . . . . . . . . . . . 85.
4.2. Mass Movements . . . . . . . . . . . . . . . . . . . . . . . . . 90.
PART 3 -- TECTONICS AND topography.
5 A Debate About Steady State.
5.1 A Century of Conceptual Models . . . . . . . . . . . . . . . . . . 113.
5.2 Hillslope Degradation . . . . . . . . . . . . . . . . . . . . . . 119.
5.3 Erosion of Mountain Ranges . . . . . . . . . . . . . . . . . . . 123.
5.4 Non-Steady State Erosion of Tectonically Active and Inactive Fluvial Systems 131.
6 Influences of Erosion on Tectonic Deformation and Fault Propagation.
6.1 Exfoliation . . . . . . . . . . . . . . . . . . . . . . . . . . 134.
6.2 Ridgecrest Spreading . . . . . . . . . . . . . . . . . . . . . . 134.
6.3 Erosional Controls of Fault Zone Partitioning . . . . . . . . . . . . . 139.
6.4 Consequences of Erosion Induced by Long-Term Plate Collision . . . . . . 141.
6.5 Fault Propagation . . . . . . . . . . . . . . . . . . . . . . . . 150.
7 Tectonic Geomorphology of a Plate Boundary.
7.1 Walker Lane-Eastern California Shear Zone . . . . . . . . . . . . . 177.
7.2 Sierra Nevada Microplate . . . . . . . . . . . . . . . . . . . . . 188.
7.3 Mendocino Triple Junction . . . . . . . . . . . . . . . . . . . . 203.
References Cited . . . . . . . . . . . . . . . . . . . . . . . . . 227.
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ***