Quaternary Geology of the Indiana Portion of the Western Extent of the South Bend 30- x 60-Minute Quadrangle

The Quaternary Geology of the eastern South Bend 30- x 60-Minute Quadrangle in Indiana represents landforms and near-surface sediments deposited during the Wisconsin Episode, Late Pleistocene. Sediments and landforms reflect the interplay between the Saginaw and Michigan Lobes of the Laurentide Ice Sheet. A relatively shallow, buried pre-Wisconsin and mid-Wisconsin morphology has been overridden by advances leading to the Last Glacial Maximum (LGM), ca. 24 ka. Between 24 and 17 ka, retreating ice fronts from the Michigan Lobe left a succession of ice-contact sediment ramps and associated pitted and collapsed fan-moraine complexes throughout the south and west of the map area. A sequence of stacked diamicton and sand and gravel fan heads appears at the hinged interlobate area north and northeast of South Bend. Ice margin positions are marked by distinct features like fans, kames and ice-walled lake plains, which are well developed on Michigan Lobe margins. The thicker glaciofluvial sand and gravel packages appear mostly interbedded with diamicton beds along fan heads, with relatively minor deposits in valley train units. Lowlands are mostly occupied by post-LGM (ca. 18 ka) valley-train outwash deposits, with interpreted flow toward the south and west, derived from an ice margin retreating first from south to north, near Mishawaka, then from southeast to northwest across the Kankakee valley. Sand and gravel colluvial and alluvial fans developed in a short span after ice retreated, along with incision of the ice-sculpted morphology. Late-glacial aeolian sand dunes sealed the landscape. Relatively minor modification of the landscape during the Holocene is indicated by alluvial and palustrine deposits.

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The Col-Gully and Glacial Deposits at Court Hill, Clevedon, Near Bristol, England

Journal of Glaciology ◽

10.3189/s0022143000198077 ◽

1978 ◽

Vol 20 (82) ◽

pp. 173-188 ◽

Cited By ~ 3

Author(s):

D. D. Gilbertson ◽

A. B. Hawkins

Keyword(s):

Ice Sheet ◽

Quaternary Geology ◽

The South ◽

Quaternary Deposits ◽

Glacial Deposits ◽

Complex Sequence ◽

Water And Sediment ◽

Sandy Silt ◽

Carboniferous Limestone

AbstractAn outline is given of the Quaternary geology and geomorphology of Court Hill Col in Failand Ridge near Clevedon, Avon County, from observations made during the construction of the M5 Motorway.A glacial col-gully about 100 m wide and approximately 25 m deep is described. The col-gully, eroded through the Carboniferous Limestone, opens and deepens northward. Associated with the Col and the col-gully is a complex sequence of Quaternary deposits. Uppermost in the sequence is a layer of red sandy silt (cover sand) approximately 0.5 m thick, of periglacial origin, probably of Devensian (Weichselian) age. Largely confined to the col-gully are unstratified tills, stratified ice-contact deposits and glacio-lacustrine deltaic deposits. The glaciogenic deposits are up to 25 m thick. Boulders of about 8 Mg in weight have been observed.The geomorphology of the col-gully, and the stratification and composition of the glaciogenic deposits, demonstrate that an ice sheet at least 85 m thick had impinged against the south flank of Failand Ridge and was discharging immense quantities of water and sediment down an ice-contact slope through the Col into a small ice-marginal lake north of the col-gully. The ice sheet is regarded as being Wolstonian, or Anglian, in age.The precise origins of the col-gully and the interpretation of the glacial sequence are not yet completely clear. However, it is believed that the balance of evidence indicates that both the col-gully itself and the glaciogenic deposits represent a complex sub-, en- and pro-glacial sequence associated with the downwasting and division of an ice mass into two parts by the "emergence" of Failand Ridge. The possible extent and geomorphological implications of ice-sheet penetration into the Bristol area are briefly discussed.

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Remarks on the Quaternary geology of Jameson Land and adjacent areas, Scoresby Sund, East Greenland

Rapport Grønlands Geologiske Undersøgelse ◽

10.34194/rapggu.v48.7312 ◽

1972 ◽

Vol 48 ◽

pp. 93-98

Author(s):

S Funder

Keyword(s):

Quaternary Geology ◽

Field Observations ◽

East Side ◽

The South ◽

East Greenland ◽

The North ◽

South West

During the summer of 1971 mapping of Quatemary geology was carried out in the eastem part of the Scoresby Sund region: along the coasts of Jameson Land, at the head of Carlsberg Fjord, around Scoresbysund settlement and at the mouth of Schuchert Dal to the north of Hall Bredning. Observations made by K. Birkenmajer and M. Aellen on the distribution of erratic boulders and extent of glaciation in areas to the south and south-west of Carlsberg Fjord and along the east side of Schuchert Dal were kindly made available to me. The work this summer marked the completion of a 'three summer project' of Quatemary mapping in the region. Some results from the first two summers have been published previously (Funder, 1970, 1971). In the map (map 4) some significant field observations have been presented. The distribution of 'Jameson Land plateau drift deposits' on the map is mainly based on observations by F. Surlyk and T. Birkelund which kindly have been put at my disposal. Sample localities of C14 dates are plotted on the map; a list of these dates with short abstracts is found at the end of this report.

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The Initial Period of the Investigation of the Relief and Landscape of the Oka River Valley (the 19th Century — the 1940s)

Вестник Рязанского государственного университета имени С.А. Есенина ◽

10.37724/rsu.2021.71.2.014 ◽

2021 ◽

pp. 130-139

Author(s):

А.Ю. Воробьев

Keyword(s):

19Th Century ◽

Initial Period ◽

River Valley ◽

Quaternary Geology ◽

Moscow Region ◽

The South ◽

River Terraces ◽

Vladimir Region ◽

The 19Th Century

Рассматриваются изданные с середины XIX века до 1940-х годов работы, посвященные физико-географическим исследованиям в пределах долины средней Оки в Рязанской области, юго-востока Московской области и юга Владимирской области. Отмечен повышенный интерес к вопросам четвертичной геологии и распределения высот в террасовом комплексе долины. Выделены достижения в области разработки вопросов типизации археологических памятников и геоморфологического районирования. Обозначены тенденции, существовавшие в распределении акцентов в физико-географических исследованиях региона за период с середины XIX века по 40-е годы ХХ столетия. Определены главные методологические черты исследовательской работы, осуществлявшейся ведущими и региональными научными физико-географическими школами в обозначенный период и предметом которой были современное состояние долинных геокомплексов средней Оки и их облик в древности. The article treats research works published in the period between the mid 19th century and the 1940s and devoted to the investigation of the Oka river valley in the Ryazan region, the southeast of the Moscow region and the south of the Vladimir region. The article underlines that the issues of quaternary geology and architecture of river terraces have been investigated by many researchers. The article analyzes works devoted to the classification of archeological and geomorphological structures. It investigates tendencies associated with geographic research of the region during the mid 19th century – the 1940s. It identifies major methodological characteristics of the research of the architecture of the Oka river valley performed by leading and local geographic societies.

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Aeromagnetic map of the South Bend quadrangle, Pacific County, Washington

10.3133/gp184 ◽

1958 ◽

Keyword(s):

The South ◽

South Bend

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Quaternary geology of the Ivigtut-Nunarssiut region, South-West Greenland

Rapport Grønlands Geologiske Undersøgelse ◽

10.34194/rapggu.v85.7533 ◽

1977 ◽

Vol 85 ◽

pp. 64-67

Author(s):

M Kelly

Keyword(s):

Quaternary Geology ◽

Gravity Survey ◽

The South ◽

West Greenland ◽

The North ◽

South West ◽

Southern Area ◽

Pack Ice ◽

Ice Conditions ◽

Bad Weather

In order to provide data for the 1:500000 map sheet (Quaternary geology of Greenland, sheet l) a reconnaissance was made of the Quaternary geology of the Ivigtut and Nunarssuit regions shown on Fig. 16, in conjunction with a gravity survey carried out by D. J. Blunden, University of London. The coverage of the southern area, however, was very scant due to prolonged bad weather and difticult pack ice conditions. In addition the survey of marine limits was extended to the adjacent Frederikshåb and Neria areas to the north. The topography of the area consists ofa rolling plateau descending from about 800 m in the north to less than 300 m in the south, dissected by steep sided fjords and inlets. Notable are the 'coastal mountains' - relatively sharp featured hills standing above the plateau leveion the western ends of peninsulas and offshore islands. Other isolated eminences occur inland up to c. 1200 m.

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