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Journal article
Rupture geometries in anisotropic amphibolite recorded by pseudotachylytes in the Gairloch Shear Zone, NW Scotland
Recent earthquakes involving complex multi-fault rupture have increased our appreciation of the variety of rupture geometries and fault interactions that occur within the short duration of coseismic slip. Geometrical complexities are intrinsically linked with spatially heterogeneous slip and stress drop distributions, and hence need incorporating into seismic hazard analysis. Studies...Campbell, Lucy R ; Phillips, Richard J ; Walcott, Rachel ; Lloyd, Geoffry E
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Lecture
Co-evolution of geological and biology from a mineralogical perspective
• Earth's surface harbours at least 5809 known minerals, but when Earth first formed 4.65 billion years ago, it had about 420. Moreover, what is common on the surface today was uncommon then. Many rocks and minerals have come into being while others have become extinct. • The overall increase...Walcott, Rachel
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Poster (unpublished)
Mining the minerals, data, and other resources of the National Museums Scotland Collection
National Museums Scotland has a hugely diverse, historical, and well-curated mineral collection. Five kilometres from here at the National Museums Collections Centre, over 70,000 mineral and rock specimens are housed in one of the best storage facilities in Europe. There are over 2000 mineral species represented, with examples from a...Walcott, Rachel ; Brown, Emily ; Davidson, Peter
National Museums Scotland Collection , mineral species, National Museums Collection Centre, mineral specimens, and data mining
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Poster (unpublished)
Strontian strontianite: combining old collections and modern analytical tools to piece together Sr-mineral paragenesis at a classic locality
The Strontian lead mines in Lochaber, western Scotland are a unique and historically-important mineral locality, being the source of discovery of the element strontium and the type locality for two strontium minerals (strontianite and brewsterite-Sr). With several potential applications of strontium in green technologies, it is important to develop our...Bob, Gooday ; Walcott, Rachel
geology, mineralogy, museum collection, Strontian strontianite, and Sr-mineral paragenesis
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2012
Journal article
Using hilltop curvature to derive the spatial distribution of erosion rates.
Erosion rates dictate the morphology of landscapes, and therefore quantifying them is a critical part of many geomorphic studies. Methods to directly measure erosion rates are expensive and time consuming, whereas topographic analysis facilitates prediction of erosion rates rapidly and over large spatial extents. If hillslope sediment flux is nonlinearly...Hurst, Martin D. ; Mudd, Simon M. ; Walcott, Rachel ; Attal, Mikael ; Yoo, Kyungsoo
landscape evolution, geomorphology, Erosion rates, transient landscapes, hydrology, and sediment transport
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2012
Journal article
Tectonic controls on the evolution of the Clutha River catchment, New Zealand
A synthesis of published information on mountain uplift and river capture in Otago suggests that the Clutha River catchment has evolved westwards and expanded since the Pliocene. River capture events that facilitated catchment expansion are indicated by sediment provenance, drainage geometry and freshwater fish genetics. The catchment has been partly...Craw, Dave ; Upton, Phaedra ; Walcott, Rachel ; Burridge, Chris ; Waters, Jonathon
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2013
Journal article
Influence of lithology on hillslope morphology and response to tectonic forcing in the Sierra Nevada of California
[1] Many geomorphic studies assume that bedrock geology is not a first-order control on landscape form in order to isolate drivers of geomorphic change (e.g., climate or tectonics). Yet underlying geology may influence the efficacy of soil production and sediment transport on hillslopes. We performed quantitative analysis of LiDAR digital...Hurst, Hurst, Martin D ; Mudd, Simon M. ; Yoo, Kyungsoo ; Attal, Mikael ; Walcott, Rachel
lithology, landscape evolution, geomorphology, hillslopes, and LiDAR
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