LDM

Página inicial soc econ paleont mineiro

soc econ paleont mineiro

Recent Supratidal Dolomite from Broad Sound, Queensland ...

I I I I I I I I I I I I I I I I I I I 1972/109 REC~~ SUPRATIDAL DOLOMITE FROM BROAD SOUND, QUEENSLAND by 1. Bureau of Mineral Resources, Canberra 2. Radiocarbon Laboratory, Australian National University,

Types of carbonate platforms: a genetic approach | Earthdoc

Jan 12, 2002· ABSTRACT Many types of carbonate platforms have been described, from homoclinal ramps to rimmed shelves and a full spectrum of variations in between; the distinction between these different types can be problematic. Nevertheless, classification of carbonate platforms is not just a semantic or academic issue. For example, it is clearly important for the accurate interpretation of …

Patterns of basin fill in Triassic turbidites of the ...

Soc. Econ. Paleont. Miner. Reprint Series 14, Tulsa, OK. Cai, J. & Zhang, K. (2009) A new model for the Indochina and south China collision during the Later Permian to the Middle Triassic. Tectonophysics, 467, 35–43. [Google Scholar]

Intraplate stresses and the stratigraphic evolution of the ...

Christie-Blick, N. and K.T. Biddle 1985 Deformation and basin formation along strike-slip faults. In: N. Christie-Blick and K.T. Biddle (eds): Strike-slip deformation, basin formation and sedimentation–Soc. Econ. Paleont. Spec. Pub. 42: 1–34 CrossRef Google Scholar

The exaerobic zone, a new oxygen-deficient marine ...

May 07, 1987· 1. 1.Rhoads, D. C. & Morse, J. W. Lethaia 4, 413–428 (1971). 2.Byers, C. W. Spec. Publs Soc. econ. Paleont. Miner. 25, 5–17 (1977). 3.Savrda, C. E. & Bottjer, D ...

Comet showers as a cause of mass extinctions | Nature

Affiliations. The Institute for Advanced Study, Princeton, New Jersey, 08540, USA. Piet Hut. Department of Geology and Geophysics, University of California, Berkeley ...

Swisher III, Carl C. - Rutgers University :: Department of ...

Wright-Rieman Laboratories Busch Campus, 610 Taylor Rd. Piscataway, NJ 08854-8066

Facies, Sequences and Sand-Bodies of the Principal Clastic ...

One of the many controls on the diagenesis of clastic sediments is the depositional environment in which the sediments accumulated (Hayes, 1979; Nagtegaal, 1980). This control operates in a number of...

Pull-apart Vein System of the Toyoha Deposit, the Most ...

AKOME, K. and HARAGUCHI, M. (1963): Geology and ore deposits of the Toyoha mine. Mining Geol., 13, 93-99 (in Japanese with English abstract). AKOME, K. and HARAGUCHI, M. (1967): The characteristics of fracture and mineralization of the Toyoha mine.

The Phuket Group, Peninsular Thailand: a Palaeozoic ...

May 01, 2009· The Phuket Group is the oldest rock unit in the Phuket-Takua Pa-Krabi region of the Thai Peninsula. The Group comprises two Formations: a Lower Formation of Ordovician, or possibly Cambrian, to Lower Permian age, exceeding 3 km in thickness, and an Upper Formation of early Permian age between 100 and 200m thick.

Foreland basins | Geophysical Journal International ...

Summary. The characteristic pattern of the subsidence, deformation, uplift and erosion of foreland basins, or exogeosynclines, has long been recognized by geologists as an integral part of the geosynclinal cycle yet only descriptive models have been proposed.

Dolomitization patterns in Jurassic-Cretaceous dissolution ...

Along the Jurassic-Cretaceous dolomitic beds of the Tripolis Unit in the Mainalon Mt. and the surrounding areas, products of a widespread breccias have been recognized. This brecciation extended through at least two stages, early- and late diagenetic, respectively.

Phanerozoic reef evolution: Basic questions and data base ...

Dec 01, 1992· An up-dated data base is a matter of importance and urgency in order for encouraging a process-oriented approach to the study of reef evolution. The evolution of reefs is a major section of a Priority Program of the Deutsche Forschungsgemeinschaft devoted to ‘Global and regional controls of biogenic sedimentation’. Biological, paleontological and geological approaches in the study of ...

Compiled by R. F. Yerkes1 and R. H. Campbell 2 Open File ...

118052'30' 34022'30' SIMI QUADRANGLE 34°15'00f 118°45'00f EXPLANATION 1. California Division of Mines and Geology, 1973 2. Whaley and Ricketts, 1975

Joint spacing in sedimentary rocks - ScienceDirect

Jan 01, 1991· It is widely observed that joint spacing is proportional to bed thickness in sedimentary rocks. The origin of this proportionality is explored by observation of joint spacing in the Monterey Formation of California and by one-dimensional numerical …

Henry W. Posamentier

Henry William Posamentier (born December 4, 1948) is an American geologist.He helped pioneer and develop the modern approach to sequence stratigraphy, blending the disciplines of sedimentology, stratigraphy, and depositional systems analysis, largely within the context of oil and gas exploration.During the past decade he pioneered and popularized the discipline of seismic …

References - ScienceDirect | Science, health and ...

REFERENCES AEELSON, H., 1954. Amino acids in fossils. Science, 119: 576. P. ADAMS, E. and RHODES,M. L., 1960. Dolomitization by seepage refluction. Bull. Am. Assoc. J ...

Cd/Ca in late Miocene benthic foraminifera and changes in ...

The late Miocene carbon shift (∼6.2 Myr)—a 0.5–1.0‰, δ13C decrease in benthic and planktonic foraminifera—has been ascribed to changes in global inventory, deep-ocean circulation, and ...

LA I C Natural History Museum Of Bull. Southern California ...

88 SOUTHERN CALIFORNI ACADEMA Y OF SCIENCES Fig. 6. Septa suture olf the Rose Canyon sepiamorph sepiid hypotype, LACMI, P 8407, at chamber height of 15 mm alon left-laterag sidl oe f phragmocone x2.8, Th.e septa suturl wae s draw fron m

Late Triassic reefs from the Northwest and South Tethys ...

Jun 28, 2005· Soc Econ Paleont Miner Spec Publ, pp 203–231 Google Scholar Dullo W-Chr (1980) Paleontology, facies, and geochemistry of the Dachstein Limestone (Upper Triassic) in the southwestern Gesäuse Mountains, Styria, Austria. Facies 2:55–122 Google Scholar Dullo W-Chr, Lein R (1982) Facies environment of the Lechkogelbeds (Carnian, Alps).

SEPM Sequence Stratigraphy: Seismic Interpretation

Seismic Sequence Analysis References. Ball, M.M., Dash, B.P., Harrison, C.G.A., and Ahmed, K.O., 1971, Refraction seismic measurements in the northeastern Bahamas ...

Taxonomy and distribution of recent benthic foraminifera ...

Feb 05, 2015· Recent foraminifera from Colva beach sands, Goa. Jour. Pal. Soc. India, 32 : ] 22- [ 30. Bhalla, S.N. 1968. Recent foraminifera from Visakhapatnam beaeh sands and its relation to the known ...

Middle Ordovician facies and trilobite faunas in N America ...

Progm. geol. Soc. Am. (North East Section) 8, 288 –9. Titus , R. & Cameron , B. 1976 . Fossil communities of the Lower Trenton Group (Middle Ordovician) of central and northwestern New York State .

Effects of Silver, Aluminum, and Chrome Ions on the ...

The effects of Ag +, Al 3+, and Cr 3+ ions on calcium carbonate polymorphs were investigated using a double diffusion technique. The experimental results, analyzed by the equivalency rule, were as follows: (i) Ag +, Al 3+, and Cr 3+ ions promoted the formation of aragonite; (ii) in the presence of Ag + ions, Ag 2 CO 3 crystals acted as a nucleus for the epitaxial growth of aragonite; (iii) Al ...

San Cassiano Formation - Wikipedia

San Cassiano Formation (Anisian-Carnian) is a geologic formation located on the Southern Alps (Northeast of Italy) in the Dolomites.These Triassic dolomites are considered to be a classic example of ancient carbonate platforms. As the allochthonous elements in the Shale strata (Cipit boulders) show a good preservation, fossils and microbialites contained in these elements are useful in ...

Dolomitization patterns in Jurassic-Cretaceous dissolution ...

Along the Jurassic-Cretaceous dolomitic beds of the Tripolis Unit in the Mainalon Mt. and the surrounding areas, products of a widespread breccias have been recognized. This brecciation extended through at least two stages, early- and late diagenetic, respectively. The first brecciation stage is considered to have taken place penecontemporaneously or soon after the deposition related with ...

Moroccan Geology - SEPM Strata

Free Web tutorials sequence stratigraphy, tutorials carbonate petrology, seismic interpretation sequence stratigraphy exercises Lower Cretaceous South Africa, seismic interpretation sequence stratigraphy exercises Bahamas Miocene, seismic interpretation sequence stratigraphy exercises Lower Cretaceous Alaska, clastic outcrop interpretation sequence stratigraphy exercises of Bookcliffs ...

MIOCENE PHOLADID BORING S 87 - Decapoda

88 SOUTHERN CALIFORNI ACADEMA OY F SCIENCES MIOCENE PF burrows are assigned to Thalassinoides on the basis of comparison to illustrations in Ekdal ee t al. (1984 figs., 3-5 15-5), . Ichnofacies According to Ekdale et al. (1984), firm but uncemented substrate ars e associated

Neogene paleobiogeography and East African ...

A minimum of 28 genera of rodents and one genus of lagomorph were recovered from the Tugen Hills, Baringo District, Kenya, from localities dating from over 15·5 to about 4·4 Ma.

biblio 111 mimmo - ISPRA

Riv. It. Paleont. Strat., 94/3: 425-454. BERSEZIO R. & FORNACIARI M. (1988) - Tectonic framework of the Lombardy foothills (Southern Alps) between Brianza and Lake Iseo. Rend. Soc. Geol. It., 11: 75-78. BERTOTTI G. (1990) - The deep structure of the Monte Generoso basin: an extensional basin in the south-Alpine Mesozoic passive continental ...

Volcaniclastic Sedimentation and Facies

Above the Plio-Pleistocene siliciclastic basement, five seismic units, Unit 1 to Unit 5 in descending order, were identified and correlated to the Pleistocene Ryukyu Group and Holocene sediments. A major tectonic event between ca. 1.7 Ma and 1.2 Ma deformed the Plio-Pleistocene siliciclastic basement (Unit 6).

Genesis of stromatactis in an upper jurassic carbonate ...

The Middle Oxfordian strata in the southern part of the Cracow-Wielun Upland consist of platy and bedded limestones (‘normal facies’), of massive limestones as well as locally of mass flow sediments. Massive limestones, prevailing in the Upper Oxfordian, form commonly carbonate buildups, which are made up predominantly of cyanobacterial allochems and to a minor amount of siliceous sponges.

Implications of Palaeozoic phosphorites in the northern ...

4. D'Allura, J. A., Moores, E. M. & Robinson, L. Pacif. Coast Paleogeogr.Symp. Soc. Econ. Paleontol. Miner. 1, 421–440 (1977). Google Scholar

High-resolution ammonite, belemnite and stable isotope ...

Boll. Soc. Paleont. Ital. 41, 13-35. Mariotti N. 2002b: Systematics and taphonomy of an Early Kimmeridgian belemnite fauna from the Mediterranean Tethys (Monte Nerone, Central Apennines, Italy). Geobios 35, 213-232.

Increased solubility of quartz following ferrous–ferric ...

A knowledge of the solubility of quartz and silicates in natural waters is important to the understanding of many gelogical processes. Here we provide experimental data to support an earlier ...

Dynamic Processes of Abyssal Sedimentation: Erosion ...

Summary. The concept of a quiet, nearly motionless, and certainly currentless deep-sea floor lacking the processes of erosion so prevalent in shallower seas was well ingrained in scientific thought until discoveries of the past decade revised this serene and static picture.