For more than 150 years, geologic characteristics claimed to be evidence for pre-
Pleistocene glaciations have been debated. Advancements in recent decades, in …

Shortly after 14,500 ybp during the deglaciation of the Laurentide Ice Sheet in eastern North
America, the 80 km wide Seneca-Cayuga paleo ice stream occupied the overdeepened …

When large volumes of meltwater arrive suddenly at the glacier bed, the capacity of
subglacial conduits is exceeded, generating transiently high fluid pressures. Yet we …

This paper addresses the effect of fractures within crystalline bedrock on glacial erosion
processes in fast flowing hard bed glacier environments. In particular, we examine (i) …

We employ and further develop quantitative analytical techniques used to map roughness
on fault planes, to map and classify drumlins and mega-scale glacial lineations (MSGLs) on …

Subglacial landscapes, revealed in regions of recent ice-sheet retreat, provide a window
into ice-sheet dynamics and interactions with evolving subglacial topography. Here, we …

Roches moutonnées are typical landforms of glacial erosion developed in hard rocks, with
an asymmetric profile caused by abrasion and lee-side plucking. In eastern Sweden, some …

Dense networks of dilated fractures occur locally in the upper 5–15 m of bedrock in
basement gneisses in eastern Sweden. Near Forsmark, pre-existing sub-horizontal fractures …

Holleford Crater is a deeply buried, 2.35 km diameter late Proterozoic‐early Cambrian
(550±50 Ma) simple impact crater located in southeastern Ontario, Canada. Exploration …

Regional subsurface map** of glacial depositional systems preserved in buried bedrock
paleovalleys, and quantitative analysis of new LiDAR imagery of surface glacial landforms …