a r t i c l e i n f o Amazonian non-polar ice deposits on Mars record periods and events when the climate differed substantially from that of today. Particularly evident are examples of ice-rich deposits in the martian mid-latitudes (lobate debris aprons, lineated valley fill, and concentric crater fill). Uncertain, however, is the amount of ice remaining in these deposits today, and the thickn...

a r t i c l e i n f o Keywords: Mars lobate debris aprons lineated valley fill debris-covered glaciers glaciation rock glaciers Lobate debris aprons (LDA) and lineated valley fill (LVF) have been known to characterize the mid-latitude regions of Mars since documented by Viking; their flow-like character suggested that deposition of ice in talus pile pore space caused lubrication and flow during...

Hydrological Processes. 2017;1–19. Abstract This study analyzes a long‐term regional compilation of water table response to climate variability based on 124 long‐term groundwater wells distributed across New England, USA, screened in a variety of geologic materials. The New England region of the USA is located in a humid‐temperature climate underlain by low‐storage‐fractured metamorphic and cry...

Several properties within the eastern Eyre Mountains are currently undergoing tenure revue. This report provides geological information relevant to these reviews, particularly on the sequence of glacial deposits south from Kingston. The geology of the Eyre Mountains is dominated by low-grade metasedimentary rocks of the Permian Caples terrane, becoming increasingly schistose toward the northeas...

Organized conduits of fast ice flow at the fringe of present and past ice sheets move the majority of ice from ice sheet interior to periphery. These relatively narrow corridors play a critical role in feedbacks between landscape evolution and ice sheet dynamics. Here we combine bedrock Be concentrations with distribution of lakes on Baffin Island, Arctic Canada, to constrain the pattern of gla...

Understanding spin orbital parameter-driven climate change on Mars prior to ~ 20 Ma ago requires geological evidence because numerical solutions for that period are chaotic and non-unique. We show geological evidence that lineated valley fill at low midlatitudes in the northern hemisphere of Mars (~ 37.58 N) originated through regional snow and ice accumulation and underwent glacial-like flow. ...

High resolution DEMs obtained from LiDAR topographic data have led to 9 improved landform inventories (e.g. landslides and fault scarps) and understanding of 10 geomorphic event frequency. Here we use airborne LiDAR mapping to investigate 11 meltwater pathways associated with the Tweed Valley palaeo ice-stream (UK). In particular 12 we focus on a gorge downstream of Palaeolake Milfield, previou...

Introduction: The dichotomy boundary represents one of the most important geological and geophysical features of Mars. We have been assessing the nature of modification processes along the dichotomy boundary at northern mid-latitudes in the Deuteronilus-Protonilus region and have found evidence for extensive regional Amazonian glaciation in lobate debris aprons (LDA) and lineated valley fill (L...