Two-way traveltimes of internal layers and ice thickness between Dome C - Vostok - Dome A

Chinese scientists will start to drill a deep ice core at Kunlun station near Dome A in the near future. Recent work has predicted that Dome A is a location where ice older than 1 million years can be found. We model flow, temperature and the age of the ice by applying a three-dimensional, thermomechanically coupled full-Stokes model to a 70 × 70 km**2 domain around Kunlun station, using isotropic non-linear rheology and different prescribed anisotropic ice fabrics that vary the evolution from isotropic to single maximum at 1/3 or 2/3 depths. The variation in fabric is about as important as the uncertainties in geothermal heat flux in determining the vertical advection which in consequence controls both the basal temperature and the age profile. We find strongly variable basal ages across the domain since the ice varies greatly in thickness, and any basal melting effectively removes very old ice in the deepest parts of the subglacial valleys. Comparison with dated radar isochrones in the upper one third of the ice sheet cannot sufficiently constrain the age of the deeper ice, with uncertainties as large as 500 000 years in the basal age. We also assess basal age and thermal state sensitivities to geothermal heat flux and surface conditions. Despite expectations of modest changes in surface height over a glacial cycle at Dome A, even small variations in the evolution of surface conditions cause large variation in basal conditions, which is consistent with basal accretion features seen in radar surveys.

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.2 1890

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.3 1893

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.3

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.2

De l'abolition de l'esclavage /

"Extrait de La phalange, journal de l'École sociétaire."

Report of the Committee appointed by the Philomathean Society of the University of Pennsylvania to translate the inscription on the Rosetta stone.

The "Report" includes the hieroglyphic text, translations of the three texts, and an essay on Ptolemee Epiphanes. The "Appendix" contains a facsimile of the demotic text and the Greek text.

The phalanx, or, journal of social science.

Mode of access: Internet.

Landfill and surface impoundment performance evaluation manual /

"SW-869"--Cover.

Journal of researches into the geology & natural history of the various countries visited during the voyage of H. M. S. Beagle round the world /

Includes index.

Character of renaissance architecture,

Introduction.--The dome of Florence.--Church architecture of the Florentine renaissance.--The dome of St. Peter's.--Church architecture of the Roman renaissance.--Palace architecture of the Florentine renaissance.--Palace architecture of the Roman renaissance.--Church architecture of the renaissance in north Italy.--Palace architecture of the renaissance in north Italy.--Architectural carving of the renaissance.--Architecture of the early renaissance in France.--Lescot and De l'Orme.--Architecture of the renaissance in England. I. Elizabethan art.--Architecture of the renaissance in England. II. Jones and Wren.--Conclusion.

Fourier et son système ;

Mode of access: Internet.

Oeuvres complètes.

v.1. Théorie des quatre mouvements et des destinées generales. -- v.2-5. Théorie de l'unité universelle. -- v.6. Le nouveau monde industriel et sociétaire.