With ALB and Sichuan Tianqui (002466: SHE) controlling the Greenbushes hard
rock deposit in Australia in a 49 % -51 % split (through ALB's acquisition of Rockwood), the product from the mine that formerly went to converters in China, now stays within the ALB / Tianqui supply chain.
«Dinosaur remains from the Arabian Peninsula and the area east of the Mediterranean Sea are exceedingly rare because sedimentary
rocks deposited in streams and rivers during the Age of Dinosaurs are rare, particularly in Saudi Arabia itself» says Dr Tom Rich from Museum Victoria in Australia.
The most productive coastal upwelling area of the modern ocean is the Benguela upwelling system off south - western Africa, an area that is considered to represent an important modern analogue of petroleum source
rocks deposited in the geological past.
Not exact matches
The present mineral resource estimate for Barrambie is 47.2 million tonnes grading 22.2 % titanium dioxideand 0.63 % vanadium pentoxide making it one of the highest - grade hard
rock titanium
deposits in the world.
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This crustal weakness allowed unusually high heat flow from deeper mantle sources to «super-heat» the highly organic Niobrara source
rocks, which
in turn generated the significant oil and gas
deposits now contained
in the Niobrara and Codell formations.
Marbles
in metamorphic aureoles and iron - rich skarns appear to be favored sites for gold mineralization
in these
deposits, perhaps due to the rheological character, permeability after fracturing, and chemical reactivity of those
rocks to alteration by hydrothermal fluids.
Hard
rock deposits by and large are not economic at current spot (or term) uranium prices, so if you see uranium at $ 75 or $ 80 per pound
in the coming years (I don't), purchasing shares
in hard
rock uranium development companies could lead to gains.
The occurrence of sedimentary basement
rocks at shallow levels beneath the gold workings also presents a target for high - grade mineralization proximal to the basement unconformity, similar
in style to the Hishikari
deposit in Kyushu.»
However an examination of other articles by the same author
in Ex Nihilo reveals that, to Snelling 1, everything geological (Ayers
Rock, Mt Isa ore
deposits, Bass Strait oil and gas, Queensland coal
deposits, Great Barrier Reef, etc.,) can be explained as the result of Noah's year - long Flood.
It is sedimentary
rock, a limestone born from the
deposits of sediments
in a marine environment.
App State, as it's known
in conference, play
in picturesque, inhospitable, 16,500 - seat Kid Brewer Stadium, a.k.a. the
Rock, where students tore down the goalposts last Saturday night, then
deposited one of them on the front lawn of chancellor Kenneth Peacock.
You've finally made it through «The Witching Hour,»
rocked your baby to sleep for a half an hour, (which felt more like three hours) and at last
deposited him
in his crib, cranking the white noise machine up a notch before you tiptoe out the door.
At those outcrops, the researchers calculated the percent of mud
rock in the overall
deposit by measuring the thickness of the muddy layers compared with the thickness of layers containing larger grains such as sand.
So geologists William McMahon and Neil Davies, both of the University of Cambridge, decided to look for when amounts of mud
rock began increasing
in 704 ancient river
deposits from 3.5 billion to 300 million years ago.
The researchers searched through nearly 1,200 published papers for data on mud
rock in river
deposits, and collected new field data at 125 ancient river outcrops.
Analyses of thin mineral
deposits partly covering painted cave areas provided minimum age estimates for the art, based on known decay rates of radioactive uranium
in the
rock.
Thirty to forty
rock and sediment core samples, each about 15 grams, will be hermetically sealed
in titanium tubes and
deposited in a safe location on the surface of Mars for possible retrieval by a future mission.
In mountaintop mining, companies use explosives and heavy machinery to clear away surface
rocks and extract shallow
deposits of high - quality coal.
The icy
deposits appear to be patchy and thin, and it's possible that they are mixed
in with the surface layer of soil, dust and small
rocks called the regolith.
While conducting paleontological research
in northeastern Mexico, the scientists came upon sedimentary
rock deposited toward the end of the Cretaceous Period that evidenced an enormous diversity of fossils, including the tracks of birds, dinosaurs and pterosaurs.
Any leftover debris and crushed
rocks are
deposited in neighboring valleys, creating «valley fills» that can stretch for long distances and bury entire streambeds.
Sediment dynamics play an important role
in shaping the Amazon's fluvial landscape, moving and
depositing sand,
rocks, soil, and nutrients from the Andes to the rest of the Amazon basin.
The majority of this wastewater is ancient ocean brine that was trapped
in rock layers along with gas and oil
deposits.
The
deposits are exposed
in cross section as relatively pure water ice, capped by a layer one to two yards (or meters) thick of ice - cemented
rock and dust.
Ongoing threats to areas downstream include: a large
rock slide from the headscarp into the sag pond, another failure of the
rock - slide slump block, a rapid release of water from the sag pond, and rapid or slow movement of the avalanche
deposit (shown
in lower photo).
At the high temperatures and pressures found at depth, it reacts with silicate minerals
in rocks to form a carbonate
deposit.
That could explain two other anomalies from the era's geologic record, Lenton says: the large amounts of organic - rich shale that were
deposited as nearshore sediments and the unusually high proportion of carbon - 13 isotopes
in the
rocks.
The Paleocene - Eocene warming is recorded
in the banded, flood -
deposit tan and rusted red
rock and soil layers of the Willwood formation, specifically within round, gray to brown - gray carbonate nodules
in those
rocks.
«From now on, continues Castelltort, we know that by calculating the ratio between 13C and 12C sampled
in similar slope
deposits close to continents, we can have an indication of the sea level, which means it's possible to better predict the distribution of sedimentary
rocks in our subsurface.»
The insight suggests that remote sensing could be used to find new
deposits in rocks where fault jogs are common
Hydraulic fracturing, or fracking, coupled with horizontal drilling, has unlocked large gas
deposits in shale
rock, which had been long recognized but weren't profitable to extract until about a decade ago.
He bases his argument on the finding that unusually high levels of osmium - 187 have been found
in sulphide
rocks in the
deposits.
The dunes also appear to have evolved similarly to those found on Earth,
in that the original
rocks have been
deposited from somewhere else by volcanoes, oceans, rivers, etc. and then moved, shaped, and ground up by wind.
«Excavating plant fossils preserved
in rocks deposited during the last days of the dinosaurs, we found some preserved with abundant fossilized charcoal and others without it.
LIFE will test an idea called transpermia,
in which organisms «could be ejected off one planet
in impacts, travel through space inside
rocks, then be
deposited on another world», says Bruce Betts, LIFE's lead scientist.
The crater was filled -
in with fragmented
rock, and later with more typical ocean
deposits, as the energy from the impact lessened and the environment returned to normal.
This phosphorus is mined from phosphate
rock, the main
deposits of which are located
in just three countries and whose output will be tapped
in 50 to 100 years, researcher Stewart White explained to Miller - McCune:
Lead author Martin Kennedy at the University of California, Riverside, and colleagues collected limestone and dolomite
rocks from Precambrain glacial
deposits in northern Namibia, central Australia and the North American Cordillera.
Banded iron is the iron - rich
rock found
in ore
deposits worldwide, from the proposed iron mine
in Northern Wisconsin to the enormous mines of Western Australia.
A younger volcanic
deposit lying
in the
rock above these fossils includes zircons, tiny bits of silicate mineral that often contain trace amounts of uranium.
The method has been proven robust for dating corals and larger
rock formations
in caves and has recently been adapted to date thin
deposits of carbonate on
rock art.
As of now, the reason for the
deposits is unknown, but the presence of oxygen
in the lunar
rock would make those sites attractive for future moon missions, even for human colonies, which could use the oxygen for breathing and as a rocket - fuel component.
Rock in a landslide breaks up and expands, so Moore estimated the landslide
deposit had a volume of 65 million cubic meters (2.3 billion cubic feet).
These could be places where water flowed through cracks
in the
rock, leaving mineral
deposits behind, although the rover has not yet measured their composition.
About two dozen or so fossils of the creature have been recovered, all of them from 240 - million - year - old
rocks deposited as sediment on the floor of a shallow, 5 - kilometer - long lake
in what is now southern Germany.
«Because clay minerals make up the bulk of sediment
deposited today, we are saying that it should be largely absent
in ancient
rocks.»
When I was working
in Oman, I saw these really blue, alkaline
rock pools with white
deposits at the bottom.
Whereas the tailed frogs
deposit their fertilized eggs under
rocks in streams, the other frogs previously known to have internal fertilization give birth to froglets — miniature replicas of the adults.
Years of blowing away mountain ridges
in search of coal and
depositing the excess
rock in nearby valleys have dramatically flattened the landscape
in parts of Central Appalachia.