Clay mineralogy of ODP Site 131-808 sediments

Drill core recovered at Ocean Drilling Program Site 808 (Leg 131) proves that the wedge of trench sediment within the central region of the Nankai Trough comprises approximately 600 m of hemipelagic mud, sandy turbidites, and silty turbidites. The stratigraphic succession thickens and coarsens upward, with hemipelagic muds and volcanic-ash layers of the Shikoku Basin overlain by silty and sandy trench-wedge deposits. Past investigations of clay mineralogy and sand petrography within this region have led to the hypothesis that most of the detritus in the Nankai Trough was derived from the Izu-Honshu collision zone and transported southwestward via axial turbidity currents. Shipboard analyses of paleocurrent indicators, on the other hand, show that most of the ripple cross-laminae within silty turbidites of the outer marginal trench-wedge facies are inclined to the north and northwest; thus, many of the turbidity currents reflected off the seaward slope of the trench rather than moving straight down the trench axis. Shore-based analyses of detrital clay minerals demonstrate that the hemipelagic muds and matrix materials within sandy and silty turbidites are all enriched in illite; chlorite is the second-most abundant clay mineral, followed by smectite. In general, the relative mineral percentages change relatively little as a function of depth, and the hemipelagic clay-mineral population is virtually identical to the turbidite-matrix population. Comparisons between different size fractions (<2 µm and 2-6 µm) show modest amounts of mineral partitioning, with chlorite content increasing in the coarser fraction and smectite increasing in the finer fraction. Values of illite crystallinity index are consistent with conditions of advanced anchimetamorphism and epimetamorphism within the source region. Of the three mica polytypes detected, the 2M1 variety dominates over the 1M and 1Md polytypes; these data are consistent with values of illite crystallinity. Measurements of mica bo lattice spacing show that the detrital illite particles were eroded from a zone of intermediate-pressure metamorphism. Collectively, these data provide an excellent match with the lithologic and metamorphic character of the Izu-Honshu collision zone. Data from Leg 131, therefore, confirm the earlier interpretations of detrital provenance. The regional pattern of sediment dispersal is dominated by a combination of southwest-directed axial turbidity currents, radial expansion of the axial flows, oblique movement of suspended clouds onto and beyond the seaward slope of the Nankai Trough, and flow reflection back toward the trench axis.

Beneath Helvellyn's shade. Notes and sketches in the valley of Wythburn.

Includes chapters on clouds.

The book of Elizabethan verse,

Issued also as the first in a series of four volumes to cover British poetry from the publication of Tottel's miscellany, 1557; the other volumes being The book of restoration verse, The book of Georgian verse, and The book of Victorian verse (not yet published?)

The Comedies of Aristophanes /

Each play has special t.p.

Las nubes en el archipiélago Filipino; colaboración al trabajo internacional de medición de nubes (1 junio 1896-31 de julio 1897).

At head of title: Observatorio de Manila, dirigido por los padres de la Compania de Jesús.

Greenland whiteout experiments: summer 1960. Summary report.

"Prepared for the United States Army Snow, Ice, and Permafrost Research Establishment, Corps of Engineers, under Contract DA-11-190-ENG-100."

Die Bewölkung des Russischen Reiches,

Mode of access: Internet.

Project Whiteout; an investigation of Whiteout dissipation techniques. Final report.

Mode of access: Internet.

Eight comedies of Aristophanes,

General introduction.--Chronological table.--Acharnians.--Knights.--Clouds.--Wasps.--Peace.--Birds.--Frogs.--Plutus.

The Nimbus 4 data catalog /

Mode of access: Internet.

Analysis of some cloud and frontal events : recorded during the Boulder Upslope Cloud Observation Experiment (BUCOE) of 1982 /

"March 1984."

Catalog of meteorological satellite data--ESSA 3 and ESSA 5 television cloud photography, July 1-September 30, 1967 /

Mode of access: Internet.

Aristophanes's komedier /

1. deel. Frøerne ; Skyerne ; Plutos ; Acharnerne.

The comedies of Aristophanes /

v.1. Preface. Preliminary discourse. The Acharnians. The knights or The demagogues.-- v.2. Preface. The clouds. The wasps. The discat turned gentleman.

Greek dramas

The Prometheus bound of Æschylus; tr. by Elizabeth B. Browning. The Agamemnon of Æschylus; tr. by R. Potter.--The Antigone of Sophocles; tr. by R.C. Jebb.--The Œdipus Tyrannus of Sophocles; tr. by T. Francklin.--The Alcestis of Euripides; tr. by A.S. Way.--The Medea of Euripides; tr. by A.S. Way.--The clouds of Aristophanes; tr. by W.J. Hickie.--The Plutus of Aristophanes; tr. by W.J. Hickie.