10 BÜCHER, DIE MIT «TUFFACEOUS» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
tuffaceous in der folgenden bibliographischen Auswahl. Bücher, die mit
tuffaceous im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
Ancient Egyptian Materials and Technology
A tuffaceous limestone is a sedimentary limestone which contains up to 50 per
cent pyroclastic debris. Egyptian sources The green tuff and tuffaceous limestone
utilised for stone vessels in the Early Dynastic period come from Gebel Man- zal ...
Paul T. Nicholson, Ian Shaw, 2000
2
Geology of the Olduvai Gorge: A Study of Sedimentation in a ...
This sandstone may be correlative with 1.5 m of sandy tuffaceous limestone
above the middle augitic sandstone at locality 20, and with mafic tuffaceous
sediments to the east (locs. 14, 19). 7. Brown tuffaceous siltstone. A tuffaceous ...
3
Earth's Pre-Pleistocene Glacial Record
(5) 75 m : Tuffaceous siltstone of siliceous clayey composition, containing
abundant scattered sand grains and stones. Concretions, and gennoyshif are
present, and tuff interbeds occur every 2-3 m. (4) 25m: Siliceous, sandy-silty,
tuffaceous ...
M. J. Hambrey, W. B. Harland, 2011
4
Biostratigraphy of China
The Llandovery strata are argillaceous and silty slate intercalated with finely
grained subarkose yielding Hindella and Jonesea (brachiopods). The Wenlock
rocks are greywacke subarkose and siltstone interbedded with tuffaceous
sandstone, ...
Wentang Zhang, Pei-ji Chen, Allison R. Palmer, 2003
5
U.S. Geological Survey professional paper
(4) the Chaparral Volcanics, composed of rhyolitic and andesitic tuffs, and (5) the
Green Gulch Volcanics, composed of tuffaceous rocks and basaltic flows. The
first three are arranged in probable order of decreasing age. The stratigraphic ...
Geological Survey (U.S.), 1965
6
Report of the Subcommittee on the Ecology of Marine Organisms
Lithophaga, which in the Gulf of Naples penetrated only limestones, attacked the
tuffaceous rocks of- the Japanese coast. Four tuffaceous derivatives available are
in the order of their increasing hardness; soft tuffaceous mud- stone, soft brittle ...
National Research Council (U.S.). Subcommittee on the Ecology of Marine Organisms
7
Geology and Coal Resources of the Centralia-Chehalis ...
Parke Detweiler Snavely. The tuffaceous siltstone member is relatively resistant
to weathering and forms moderately steep slopes or cliff's. "When weathered the
rock has a mottled light-gray to pale-olive color with irregular iron-stained areas.
Parke Detweiler Snavely, 1958
8
Geological Survey Professional Paper
One 4-ft boulder of hard, tuffaceous sandstone from the Aycross Formation (
middle Eocene), which crops out 15 mi to the northeast, was observed. Above
this boulder bed is 30-40 ft of tan to pink, loose, medium sand and some clay
beds.
9
Geological Survey professional paper
The Comus formation of Early and Middle Ordovician age is predominantly an
alternating sequence of dolomite, limestone, and shale, with subordinate
amounts of chert, silt- stone, and tuffaceous(?) material. Sandstone and quartzite
are ...
Geological Survey (U.S.), Geological Survey (U.S.). Geographic Names Information Management, 1962
10
Geology of the Castle mountain mining district, Montana
Associated with these tuffaceous sandstones there are, however, beds of
conglomerate whose pebbles arc well worn and rounded, formed largely of
volcanic rocks, "diorite-porphyries," but including a few pebbles of sedimentary
rocks.
Walter Harvey Weed, Louis Valentine Pirsson, 1896
10 NACHRICHTEN, IN DENEN DER BEGRIFF «TUFFACEOUS» VORKOMMT
Erfahre, worüber man in den einheimischen und internationalen Medien spricht und wie der Begriff
tuffaceous im Kontext der folgenden Nachrichten gebraucht wird.
Additional Surface Gold/Silver Sampling Results Continue to …
... breccias and tuffaceous rocks. Precious metal content is also enhanced by numerous sheeted and stockwork veinlets that carry significant gold/silver values. «Junior Mining Network, Jul 15»
GTA Confirms Gold Values Associated With Geophysical Targets at …
Montana High Resistivity Zone - Values of 1.13 g/t and 0.75 g/t gold were obtained from grab samples collected from an altered volcanic/tuffaceous rock unit ... «Junior Mining Network, Jul 15»
Africa Oil announces financial and operating results for the first …
The well encountered interbedded siltstones, sandstones and claystones, becoming more tuffaceous and tight until reaching a total depth in basement. «OilVoice, Mai 15»
Kivalliq ready to drill high-priority Dipole target at Angilak
Uranium is structurally controlled, and often associated with a graphite-chlorite tuffaceous metasediment, interlayered in Archean metavolcanics. Mineralization ... «The Northern Miner, Mai 15»
AFRICA OIL OPERATIONS UPDATE AND CONFERENCE CALL
The well encountered interbedded siltstones, sandstones and claystones, becoming more tuffaceous and tight until reaching a total depth in basement. «GlobeNewswire, Mär 15»
Cornerstone Announces Exploration Results for the Cana Brava …
The property is underlain by a N57 degrees E oriented series of andesitic flows and tuffs, dacitic tuffs and minor sequences of rhyolitic tuffaceous units (Figure 3). «MarketWatch, Feb 15»
Early study warned of potential landslides at Eaglepointe
The report looked at a 1998 slide at the nearby Springhill development, which also sits atop bedrock geologists label Norwood Tuff — a tuffaceous clay. «Salt Lake Tribune, Aug 14»
Qiyia jurassica: Bizarre Bloodsucking Parasite from Jurassic of China
All specimens are carbonaceous impressions on the surface of grey tuffaceous siltstone. The parasite was 2 – 2.5 cm long, had a gigantic sucking plate and ... «Sci-News.com, Jun 14»
Mining News: Gold leads activity in central Nunavut
Uranium mineralization occurs as fracture-controlled pitchblende with sulphides chiefly hosted in graphitic, chloritic tuffaceous metasediments of the Baker Lake ... «Petroleum News, Mai 14»
Expedition Mining Announces Drill Contract Awarded for Long …
These consist of quartz rich sediments including sandstones and mudstones along with tuffaceous units derived from volcanic sequences. The northern portion ... «Marketwired, Feb 14»
