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- Keyword
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- Minerals (3)
- Alaska (2)
- Ice (2)
- La Perouse Glacier (2)
- McCarthy Glacier (2)
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- New Zealand (2)
- Ablation (1)
- Australasia (1)
- Avalanches (1)
- Bellefonte Formation (1)
- CMP (1)
- Calcite (1)
- California (1)
- Case studies (1)
- Central Appalachians (1)
- Chrysotile (1)
- Common mid-point (1)
- Compaction (1)
- DC resistivity (1)
- Debris cones (1)
- Debris flows (1)
- Deposition geomorphology (1)
- Desert View Mine (1)
- Douglas Glacier (1)
- Edison Tunnel (1)
- Electrical Resistivity (1)
- Fluorescent (1)
- Fluorescent minerals (1)
- Fluorescent serpentine (1)
- Franklin Mine (1)
Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics Of Icy Debris Fans In Alaska And New Zealand, Robert W. Jacob, Jeffrey M. Trop, R. Craig Kochel
Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics Of Icy Debris Fans In Alaska And New Zealand, Robert W. Jacob, Jeffrey M. Trop, R. Craig Kochel
Faculty Journal Articles
Icy debris fans have recently been described as fan shaped depositional landforms associated with (or formed during) deglaciation, however, the subsurface characteristics remain essentially undocumented. We used ground penetrating radar (GPR) to non-invasively investigate the subsurface characteristics of icy debris fans (IDFs) at McCarthy Glacier, Alaska, USA and at La Perouse Glacier, South Island of New Zealand. IDFs are largely unexplored paraglacial landforms in deglaciating alpine regions at the mouths of bedrock catchments between valley glaciers and icecaps. IDFs receive deposits of mainly ice and minor lithic material through different mass-flow processes, chiefly ice avalanche and to a lesser extent …
Geomorphology Of Icy Debris Fans: Delivery Of Ice And Sediment To Valley Glaciers Decoupled From Icecaps, R. Craig Kochel, Jeffrey M. Trop, Robert W. Jacob
Geomorphology Of Icy Debris Fans: Delivery Of Ice And Sediment To Valley Glaciers Decoupled From Icecaps, R. Craig Kochel, Jeffrey M. Trop, Robert W. Jacob
Faculty Journal Articles
The pace and volume of mass flow processes contributing ice and sediment to icy debris fans (IDFs) were documented at sites in Alaska and New Zealand by integrating field observations, drone and time-lapse imagery, ground penetrating radar, and terrestrial laser scanning. Largely unstudied, IDFs are supraglacial landforms at the mouths of bedrock catchments between valley glaciers and icecaps. Time-lapse imagery recorded 300–2300 events reaching 15 fans during intervals from nine months to two years. Field observations noted hundreds of deposits trapped within catchments weekly that were later remobilized onto fans. Deposits were mapped on images taken three to four times …
Hardystonite From The Desert View Mine, California, James A. Van Fleet, Earl R. Verbeek
Hardystonite From The Desert View Mine, California, James A. Van Fleet, Earl R. Verbeek
Faculty Journal Articles
The fluorescent mineral hardystonite is confirmed in a specimen from the Desert View Mine, California. Hardystonite had been known only from Franklin, New Jersey for over 100 years.
Integrated Geophysical Investigation Of The St. James Fault Complex: A Case Study, Robert W. Jacob, Jeremy B. Byler, Mary Beth Gray
Integrated Geophysical Investigation Of The St. James Fault Complex: A Case Study, Robert W. Jacob, Jeremy B. Byler, Mary Beth Gray
Faculty Journal Articles
We noninvasively detected the characteristics and location of a regional fault in an area of poor bedrock exposure complicated by karst weathering features in the subsurface. Because this regional fault is associated with sinkhole formation, its location is important for hazard avoidance. The bedrock lithologies on either side of the fault trace are similar; hence, we chose an approach that capitalized on the complementary strengths of very low frequency (VLF) electromagnetic, resistivity, and gravity methods. VLF proved most useful as a first-order reconnaissance tool, allowing us to define a narrow target area for further geophysical exploration. Fault-related epikarst was delineated …
Fluorescent Chrysotile From Sterling Hill, New Jersey, James A. Van Fleet, Earl R. Verbeek
Fluorescent Chrysotile From Sterling Hill, New Jersey, James A. Van Fleet, Earl R. Verbeek
Faculty Journal Articles
Minerals of the serpentine group, notably chrysotile and to a lesser extent lizardite, are widely present at both Franklin and Sterling Hill. They are late-stage hydrous magnesium silicate minerals that formed by hydrothermal alteration of earlier species, among them willemite and tephroite, and are also common components of hydrothermal veins cutting the ore bodies and the enclosing marble (Dunn, 1995). Although long recognized in the area (Fowler, 1825), local serpentine was not documented as a fluorescent mineral until 2004, when a brief description of a fluorescent serpentine from Franklin appeared in The Picking Table (Cianciulli, 2004). In the present paper, …
Yellow-Fluorescing Calcite From Sterling Hill, James A. Van Fleet, E. R. Verbeek
Yellow-Fluorescing Calcite From Sterling Hill, James A. Van Fleet, E. R. Verbeek
Faculty Journal Articles
No abstract provided.