Papers - lectures 1-6

Question 1

key quotes from Finnegan et al 2014

Answer 1

1. unglaciated topography is shaped by the competition between tectonic uplift and bedrock river incision
2. channel narrowing is a common response to accelerating incision
3. the Sadler effect = the longer the time interval measured the lower the sedimentation rate

Question 2

Key quotes from Ferrier et al 2013

Answer 2

1. bedrock river incision drives the development of much of earth’s surface topography
2. spatially variable precipitation has been preposed to regulate the deformation, width and asymmetry of entire mountain ranges

Question 3

Key quotes from Smithson et al 2002

Answer 3

1. seafloor spreading is the mechanism driving plate tectonics, through the convection of new crust from the asthenosphere

Question 4

Beall et al 2018

Answer 4

earth’s oldest near surface material, the cratonic crust, is typically underlain by thick lithosphere

Question 5

Dietrich and Perron 2006

Answer 5

1. landscapes are shaped by the uplift, deformation and breakdown of bedrock and the erosion, transport and deposition of sediment
2. biota controls / mediates erosion and transport processes

Question 6

Egholm et al 2015

Answer 6

fluvial incision steepens surrounding hillslopes and increases landslide frequency