scholarly journals Modeling the Sediment Fill of the Upper Troy Pre-Glacial Bedrock Valley, McHenry County, Illinois, USA

2016 ◽  
Vol 04 (06) ◽  
pp. 107-122 ◽  
Author(s):  
Jodi Lau ◽  
Jason F. Thomason ◽  
David H. Malone ◽  
Eric W. Peterson
Keyword(s):  
Sediment Fill

scholarly journals Retrieval of Sediment Fill Factor by Inversion of a Modified Hapke Model Applied to Sampled HCRF from Airborne and Satellite Imagery

2018 ◽  
Vol 10 (11) ◽  
pp. 1758 ◽  
Author(s):  
Rehman Eon ◽  
Charles Bachmann ◽  
Aaron Gerace
Keyword(s):  
Angular Dependence ◽  
Fill Factor ◽  
Single Scattering ◽  
Laboratory Setting ◽  
Spectral Signatures ◽  
Long Term Monitoring ◽  
The One ◽  
Term Monitoring ◽  
Sediment Fill

The physical properties of a medium such as density, grain size and surface roughness all influence the angular dependence of spectral signatures. Radiative transfer models, such as the one developed by Hapke, can relate the angular dependence of the reflectance to these geophysical variables. This paper focuses on extracting geophysical parameters, fill factor (decreasing porosity) and the single scattering albedo (SSA), through the inversion of a modified version of the Hapke model of airborne and space-borne imagery. The inversion methodology was validated through controlled experiments within a laboratory setting, where a good correlation (R 2 = 0.72) between the retrieved fill factor and the measured density was obtained. Using the same approach, we also retrieved the sediment fill factor and SSA from airborne data collected by the NASA G-LiHT system, and space-borne data observed by the NOAA GOES imager. The results from these studies provide a mechanism to understand geophysical characteristics of the terrain and may potentially be used for long-term monitoring of the dynamic dunes system.

scholarly journals Earliest Jurassic (Hettangian) psiloceratoid ammonites from a subrosion pipe at Winterswijk, the eastern Netherlands

2007 ◽  
Vol 86 (4) ◽  
pp. 379-388 ◽  
Author(s):  
A.A. Klompmaker ◽  
B.J.H.M. van den Berkmortel
Keyword(s):  
Extensive Literature ◽  
Sediment Fill

AbstractA small faunule of fragmentary Hettangian (earliest Jurassic) psiloceratoid ammonites collected from dark-coloured, clay-rich sediments in a subrosion pipe at Quarry III of the Winterswijk quarry complex is described. The genera Alsatites, Saxoceras and Schlotheimia are determined by comparison to extensive literature on coeval, north German faunas. Taphonomic features are apparent indicating condensation and reworking. Despite this, the portion of the subrosion pipe sediment fill which yielded this material can be dated as middle to late Hettangian.

Sediment fill geometry and structural control of the Pampa del Tamarugal basin, northern Chile

2018 ◽  
Vol 131 (1-2) ◽  
pp. 155-174 ◽  
Author(s):  
N. Labbé ◽  
M. García ◽  
Y. Simicic ◽  
E. Contreras-Reyes ◽  
R. Charrier ◽  
...  
Keyword(s):  
Structural Control ◽  
Northern Chile ◽  
Pampa Del Tamarugal ◽  
Sediment Fill

Sediment fill and fault activity in the Mesta Basin (SW Bulgaria)

2010 ◽  
Vol 258 (3) ◽  
pp. 365-379 ◽  
Author(s):  
Tom McCann ◽  
Andreas Siemes ◽  
Anne Fischer ◽  
Alena Ebinghaus ◽  
Andreas Temme
Keyword(s):  
Fault Activity ◽  
Sediment Fill

scholarly journals The sediment‐fill of Pago Pago Bay (Tutuila Island, American Samoa): New insights on the sediment record of past tsunamis

Sedimentology ◽  
2020 ◽  
Vol 67 (3) ◽  
pp. 1577-1600 ◽  
Author(s):  
Brieuc Riou ◽  
Eric Chaumillon ◽  
Jean‐Luc Schneider ◽  
Thierry Corrège ◽  
Catherine Chagué
Keyword(s):  
American Samoa ◽  
Sediment Record ◽  
Sediment Fill

scholarly journals Middle Eocene CO2and climate reconstructed from the sediment fill of a subarctic kimberlite maar

Geology ◽  
2017 ◽  
Vol 45 (7) ◽  
pp. 619-622 ◽  
Author(s):  
Alexander P. Wolfe ◽  
Alberto V. Reyes ◽  
Dana L. Royer ◽  
David R. Greenwood ◽  
Gabriela Doria ◽  
...  
Keyword(s):  
Middle Eocene ◽  
Sediment Fill

Seismic reflection investigation of Kalamalka Lake: a "fiord lake" on the Interior Plateau of southern British Columbia

1990 ◽  
Vol 27 (9) ◽  
pp. 1225-1235 ◽  
Author(s):  
Henry T. Mullins ◽  
Nicholas Eyles ◽  
Edward J. Hinchey
Keyword(s):  
British Columbia ◽  
Sea Level ◽  
Seismic Reflection ◽  
Lake Basin ◽  
Seismic Reflection Profile ◽  
Sediment Record ◽  
History Of ◽  
Cordilleran Ice Sheet ◽  
Continental Interior ◽  
Sediment Fill

A uniboom seismic reflection profile survey has revealed the nature of bedrock relief and the acoustic character of Pleistocene glacial sediment fill beneath Kalamalka Lake in southern British Columbia. Despite its continental interior setting, Kalamalka Lake basin has many attributes of coastal fiords, such as being overdeepened below sea level and having closed bedrock depressions and a thick sediment fill.The bedrock surface beneath Kalamalka Lake has been eroded as much as 417 m below lake level (26 m below sea level) and is characterized by a series of closed, glacially overdeepened depressions. We suggest that the location of the lake basin is structurally controlled but was overdeepened by rapidly flowing ice that drained the interior portions of the Cordilleran ice sheet during repeated Pleistocene glaciations.Up to 272 m of sediment has been deposited beneath Kalamalka Lake. The greatest thickness of the sediment fill (up to 237 m) is a seismically transparent unit that overlies a thin (up to 20 m), discontinuous lower stratified unit and is overlain by a thin (up to 15 m), continuous upper unit that is well stratified. The sedimentological nature of the lower stratified unit is not known but could represent a discontinuous coarse lag. The thick, middle transparent unit is interpreted as a massive silt deposited rapidly in a proglacial lake from suspended-sediment plumes during deglaciation. The thin overlying stratified unit may be correlative with laminated glaciolacustrine "white silt" deposits that outcrop extensively across central and southern British Columbia, suggesting a common history of deglaciation and sedimentation.An ambitious research program focused on seismic stratigraphic definition, coupled with direct drill-core sampling, is needed to take full advantage of the extensive sediment record that exists beneath the large, glacially overdeepened lakes of southern British Columbia.

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