arrival | nottard of state | Ice period in Maine
Common navard terms and also definitions:Delta: A body of sand and also gravel deposited where a stream beginning a lake or ocean and drops that sediment load. Glacially deposited deltas in Maine normally consist of two parts: (1) coarse, horizontal, frequently gravelly "topset beds" deposited in stream networks on the flat delta top, and (2) underlying, finer-grained, inclined "foreset beds" deposited on the advancing delta front. Deposit: basic term for any build-up of sediment, rocks, or other planet materials. Drumlin: An elongate, oval-shaped hill, normally composed of till, that has been shame by the circulation of glacial ice, such that its lengthy axis is parallel come the direction of ice flow. End Moraine: A ridge the sediment deposited along the margin that a glacier. Usually is composed of it rotates and/or sand and gravel in assorted proportions. Esker: A ridge that sand and also gravel deposited at the very least partly by meltwater flow in a tunnel in ~ or beneath glacial ice. Fluvial: Term provided to define river or stream-related features or processes. Fluvial deposits space sediments left by the flowing water the a stream. Glacier: A human body of ice, consisting mainly of recrystalized snow, the shows proof of downslope or external movement because of the stress of its own weight. Glaciolacustrine: Refers come sediments or processes including a lake which obtained meltwater from glacial ice. Glaciomarine: refers to sediments and processes connected to settings where maritime water and glacial ice were in contact. Grounding-line moraine: these moraines room formed listed below sea level along the ground connection line where a glacier end in the sea goes afloat.Holocene: The time period from around 10,000 years ago to the present. That is frequently used synonymously v "postglacial," due to the fact that most of brand-new England has been cost-free of glacial ice because that time. Ice age (aka: Pleistocene): The time period between 2-3 million years ago and 10,000 years ago, during which there were number of glaciations of continent proportions. Likewise called the ice cream Age.
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Particle size may selection from clay through silt, sand and gravel to huge boulders.