Glaciotectonic origin of the Massachusetts coastal end moraines and a fluctuating late Wisconsinan ice margin

A morphological, sedimentological and geophysical investigation of the Woore Moraine, Shropshire, England

“…Hambrey and Huddart, 1995;Bennett et al, 1998) produce landforms that display similar geometries and forms to those mapped on the Woore Moraine. Rees and Wilson (1998) state that many of the proximal ridges display crestlines orientated parallel with that of the moraine, which is suggestive of a morphological grain (Oldale and O'Hara, 1984). This is consistent with a glaciotectonic origin as individual ridges reflect thrust slices (Kupsch, 1962), whilst hummocks generated through ice-stagnation typically display random crest-line orientations (Andersson, 1997;Ciner et al, 1999).…”

“…This interpretation is based on: 1) the complexity of the distal flank revealed by cross-sections, 2) the orientation of the hummocks, which suggests that they are not structurally controlled (e.g. Oldale and O'Hara, 1984) and 3) the elongated form of the hummocks. This interpretation is consistent with previous studies that discuss a series of channels of trending north-south across the crest of the moraine (e.g.…”

“…These types of moraines are related to largescale glaciotectonism (e.g. Boulton et al, 1999) and have been widely documented within the U.K. (Thomas, 1984;Hart, 1990), continental Europe (van der Wateren, 1981, 1985Pedersen et al, 1988;Kluiving, 1994) and North America (Oldale and O'Hara, 1984;Sadura et al, 2006).…”

Identification of potential public water-supply areas of the Cape Cod aquifer, Massachusetts, using a geographic information system

“…Moraines were formed during periods of ice margin re-advance; advancing ice pushed pre-glacial strata and older glacial sediments into ridges (Oldale and O'Hara, 1984). Lobes of ice, occupying Buzzards and Cape Cod Bays, formed the intersecting segments of the Buzzards Bay and Sandwich moraine ( fig.…”

“…1). Moraines are composed of deformed and thrusted deposits veneered in many places by till; the till can range from coarse, poorly sorted gravel and sand to compact silts (Oldale and O'Hara, 1984). Outwash or stratified drift was deposited by glacial meltwater in front of ice margins and generally is composed of well-sorted gravel and sands.…”