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Carta geologica d'Italia 1:50.000 foglio 528 Oristano (Area Marina)
No full textCarta geologica d'Italia 1:50.000, F. 528 Oristano (parte a mare
Late Cretaceous volcaniclastic rocks at DSDP Holes 74-525A and 74-528
No full textVolcaniclastic rocks of Late Cretaceous age occur in four out of five sites (525, 527, 528, 529) drilled on the crest and the northwest flank of the Walvis Ridge during Leg 74. They are mostly interlayered with and overlie basement in the lowermost 10-100 m of the sedimentary section. Rocks from Holes 525A and 528 were studied megascopically and microscopically, by XRD, and XRF chemical analyses of whole-rock major and trace elements were undertaken. The dominant rock of Hole 528 volcaniclastics is a fine-grained (silt to fine sand), mostly matrix-bearing (partly matrix-rich) vitric "tuff," occurring as 5-110 cm thick, partly graded layers, some of which are distinctly bedded. Volcaniclastics of Hole 525A are generally richer in sanidine crystals. Most rocks contain some nonvolcanic clasts, chiefly foraminifers and lesser amounts of shallow-water fossil debris. Scoria shards, clasts of tachylite, and fine-grained basalts as well as chemical analyses suggest a basaltic to intermediate composition for most rocks of Hole 528, whereas volcaniclastics of Hole 525A are more silicic. The occurrence of tachylite and epiclastic, coarse-grained, basaltic clasts throughout the volcaniclastic sequence at Site 528 indicates shallow-water eruptions and perhaps even ocean island volcanism. The minor occurrence in Hole 528 of trachytic? pumice shards with phenocrysts of K-feldspar and the abundance of such shards in rocks from Hole 525A indicate Plinian eruptions characteristic of more mature stages of ocean island evolution. The sedimentary structures of volcaniclastic layers and their occurrence within deep sea calcareous oozes indicate a mass flow origin.
Diagenetic alteration of the volcaniclastic rocks is pronounced, and four major stages of glass shard alteration are distinguished. Despite the effects of alteration and small-scale redistribution of elements and the admixture of nonvolcanic components, there were no drastic changes in the chemical composition of the rocks, except for pronounced increases in K and Rb and decreases in Ca and Fe. The basaltic volcaniclastic rocks very much resemble basement basalts in that they are moderately evolved tholeiites derived from an LIL-enriched mantle source with Zr/Nb ratios (Hole 528) of 5 to 6. This, in conjunction with the interbedding of volcaniclastic rocks and basement lavas, indicates contemporaneous seamount or island and basement volcanic activity involving magmas derived from similar sources
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
ALVIN 528 dive 528 19 July 1974
No full textALVIN 528 dive 528 19 July 1974The runtime for this video is 07s.Alvin dive 528 took place on July 19, 1974 during voyage LU-70. The Chief Scientist was J. Heirtzler in the operating area of Mid-Atlantic Ridge. The purposewas described as 'FAMOUS GEOLOGY' and the sponsor as 'NOAA'.The items in this collection are embargoed in the system in keeping with copyright requirements. However, they are available to users upon request. Please contact the MBLWHOI Library to access the items at [email protected] of this material was supported by a Recordings at Risk grant from the Council on Library and Information Resources (CLIR). The grant program is made possible by funding from The Andrew W. Mellon Foundation. CLIR is an independent, nonprofit organization that forges strategies to enhance research, teaching, and learning environments in collaboration with libraries, cultural institutions, and communities of higher learning. To learn more, visit www.clir.org and follow CLIR on Facebook and Twitter.2200-01-0
Band 5, 528 (Sammlung Friedlaender)
No full textBAND 5, 528 (SAMMLUNG FRIEDLAENDER)
Band 5, 528 (Sammlung Friedlaender) (Public Domain) (1
Band 2, 528 (Sammlung Friedlaender)
No full textBAND 2, 528 (SAMMLUNG FRIEDLAENDER)
Band 2, 528 (Sammlung Friedlaender) (Public Domain) (1
Band 6, 528 (Sammlung Friedlaender)
No full textBAND 6, 528 (SAMMLUNG FRIEDLAENDER)
Band 6, 528 (Sammlung Friedlaender) (Public Domain) (1
El Tlacuache Núm. 528 (2012). 528 Año 13 (2012) julio. El Tlacuache
No full textPolicultivos tradicionales, huertos y creatividad agrícola en un pueblo de las tierras frías de Morelos por Ricardo Claudio Pacheco Bribiesca. -Mi nombre es Antonio Barona Rojas... por Fototeca Juan Dubernard. -San Pablo Hidalgo, Tlaltizapán, una historia milenaria por Giselle Canto Aguilar, Liliana García García
Philosophy [528]
No full textPhilosophy.
This manuscript is now IO Islamic B210 in the India Office collections.
[metadata: Otto Loth, A Catalogue of the Arabic Manuscripts in the Library of the India Office, (volume 1), no. 528 here with further notations and hyperlinks].
528.
B210. Size 71/4 in. by 51/2 in.; foll 101. Twenty-one lines in a page.
Notes on the preceding Glosses of Saiyid Sharîf, ascribed to SAIYID ‘ALÎ (‘Ajamî, d. A.H. 860). See Ḥ. Kh. 597.
Begins: قوله الفياض الوهاب اه اى الفياض الذي بمعنى الماء الكثير السيال الخ.
The last note is: قوله كما توهمه كثيرون الخ.
Irregularly written in Nasta’lîk. According to a note on the title-page (which begins من كُتُبِ من كتب
الحروف), this copy was transcribed by Fakhr al-dîn ‘Alî b. Darwîsh Muḥammad b. ‘Abdallah, for his own use. Many additional notes by the author, and some by the transcriber, are on the margin.
On the last page are noted the birth-days of three children of one Muṣṭafa, all of which have the surname of Shâh, at the beginning of the tenth century.
Bîj. Libr., A.H. 1026, from Shâh Nawâz Khân.
Cat. 236, i
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