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1
Fine-Grained Turbidite Systems: AAPG Memoir 72
Relationship to the Turbidity Current Model The debris flow model has been used
to demonstrate the effects of flow weight, fluid pressure, and friction on the
behavior of both a debris flow and a turbidity current. The same general results
can ...
Arnold H. Bouma, Charles Gomer Stone, 2000
2
Earth Surface Processes, Landforms and Sediment Deposits
These turbulent eddies cause mixing of the turbidity current with the ambient fluid
. Direct numerical simulation (DNS) of turbidity currents is capable of describing
many of these features of fluid motion (Figure 8.9D); see Necker et al.(2005).
John Bridge, Robert Demicco, 2008
3
New Zealand Journal of Geology and Geophysics
used the term "turbidity current" for these sediment-laden density currents.
Kuenen, in 1948, published a paper on further experiments, dealing with the
possible existence of turbidity currents of high density. His experimentation was
still ...
4
Advanced Drug Design And Development: A Medicinal Chemistry ...
At the field scale however, turbidity currents are more likely to be erosional and
the predicted results can be quite sensitive to the entrainment relations used in
the model. Here, the four-equation model of turbidity current is utilized to revisit
the ...
5
Hydraulics of Dams and River Structures: Proceedings of the ...
In order to illustrate the unsteady turbidity current, the sediment concentrations
are represented in Figure 4 with time steps of 20 sec, whereas the lines of
equivalent concentration have a difference of density of 0. 1 g/1. The envelope of
the ...
Farhad Yazdandoost, Jalal Attari, 2004
6
Glacial Marine Sedimentation: Paleoclimatic Significance
The remaining turbidity current travels beyond the site of deposition (see LA IV).
Though partial Bouma sequences occur, the sandy Ta division is the most
dominant facies. This dominance is commonly reported from the channelized
parts of ...
John B. Anderson, Gail Mowry Ashley, 1991
7
Stratigraphic Systems: Origin and Application
The turbidity current hypothesis was developed to explain all of these attributes.
The mechanics of turbidity current flow was determined by laboratory experiment
(Middleton and Hampton, 1973; Fig. 11.76). These studies provided the causal ...
8
Gravity Currents: In the Environment and the Laboratory
16.3 Initiation of turbidity currents The problem of how a turbidity current is
initiated, for example from a muddy slump on a slope at the sea bed, is not a
simple one. The transformation is a complicated problem involving both soil and
fluid ...
9
Formation and Applications of the Sedimentary Record in Arc ...
Waves of turbidity-current origin are created by numerous episodic events
preferentially depositing sediment on the upstream flank of the waves in antidune
fashion when the flow is in the Froude number regime of ~0.5–1.9 (Hand, 1974; ...
Amy E. Draut, Peter D. Clift, David W. Scholl, 2008
10
Sedimentology and Stratigraphy
The deposit of a turbidity current is a turbidite. The sediment mixture may contain
gravel, sand and mud in concentrations as little as a few parts per thousand or up
to 10% by weight: at the high concentrations the flows may not be turbulent and ...
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When Freshwater Hits The Ocean, It Creates A Murky Submarine River
When denser river water flows into the ocean, it creeps along the bottom churning up sediments to create a turbidity current. For the first time, researchers caught ... «io9, 4月 15»
Deep-sea robot, caught in underwater avalanche, yields new …
The floors of many submarine canyons are periodically scoured by fast-moving underwater avalanches known as "turbidity currents." In 2013, one of MBARI's ... «Phys.Org, 3月 15»
The 1929 Grand Banks earthquake
Research of this event was the first proof of the existence of turbidity currents and their power. The ocean liner RMS Olympic happened to be passing over the ... «Maritime Professional, 3月 15»
ROV gets caught in turbidity current, lives to tell the tale.
Turbidity currents are ridiculously fast, bottom-trapped currents that flow down steep ocean slopes. They are turbulent: the currents inside them are a mess of ... «Deep-Sea News, 1月 15»
Smilin' Stone and a Super-Sweet Rip-Up Clast
This is a classic section of a turbidite. These are basically the result of undersea landslides, called turbidity currents, which can be caused by a variety of things. «Scientific American, 11月 14»
Tiny, Ancient Crustacean Preserved in Fool's Gold, Legs, Eggs and All
It was a turbidity current -- an underwater landslide. It swept swiftly down like an avalanche, suffocating and burying everything in its path. It wasn't a very happy ... «Scientific American, 3月 14»
An alternative: Deep-sea tailings placement
If DSTP methodology is engineered correctly, tailings slurry should form a turbidity current which flows coherently, with minimal dispersion, until it reaches the ... «Australian Mining, 5月 13»
Dude, what's wrong with my Internet speed?
These thick optic fibre cables are sometimes disrupted due to natural phenomena, such as earthquakes and extreme turbidity current, or by coming in contact ... «The Hindu, 3月 13»
A Lonely Tree Far From Home Brings New Life to the Ocean Deep …
Maybe the flooding caused a massive turbidity current, an underwater landslide, ... Currents are sluggish in the inches close to the seafloor as they're slowed by ... «Deep-Sea News, 4月 12»
Rolling in the deep
Perhaps most extraordinarily, it is now known that it wasn't the earthquake itself that caused the tsunami, but the turbidity current. So much material was thrown ... «The Independent News, 5月 11»
