Costa Rica Rift hole deepened and logged

During Leg 111 of the Ocean Drilling Program, scientists on the drilling vessel JOIDES Resolution studied crustal structure and hydrothermal processes in the eastern equatorial Pacific. Leg 111 spent 43 days on its primary objective, deepening and logging Hole 5048, a deep reference hole in 5.9-million-year-old crust 200 km south of the spreading axis of the Costa Rica Rift. Even before Leg 111 , Hole 5048 was the deepest hole drilled into the oceanic crust, penetrating 274.5 m of sediments and 1,075.5 m of pillow lavas and sheeted dikes to a total depth of 1,350 m below sea floor (mbsf). Leg 111 deepened the hole by 212.3 m to a total depth of 1,562.3 mbsf (1,287.8 m into basement), and completed a highly successful suite of geophysical logs and experiments, including sampling of borehole waters

Women's labour, kinship, and economic changes in Jinmen in the era of authoritarian rule

This article uses the life stories of three women in Jinmen to demonstrate women’s economic agency in bettering the livelihood of their families in circumstances largely shaped by Cold War geopolitics and the authoritarian state’s military strategies. It argues that women’s devotion of their labour and earnings to their families was part of the reproductive processes of the kinship system, but also important to their building of social reputation and emotional ties with their loved ones. Moreover, the state’s campaign to protect traditional Chinese culture, framed within bipolar politics, supported the ideological reproduction of women’s primary roles being in the domestic sphere. While the lives of Jinmen civilians were significantly distorted in the Cold War era, their experiences of economic improvement and a certain stability in their ways of life – revolving around kinship – account for the ambivalence they now feel towards the period of authoritarian rule

Fear of World War III: Social politics of Japan's rearmament and peace movements, 1950-3

10.1177/0022009412441650Journal of Contemporary History473551-57

Early History of the Atlantic Ocean and Gas Hydrates on the Blake Outer Ridge: Results of the Deep Sea Drilling Project Leg 76

Leg 76 of the Deep Sea Drilling Project achieved two major scientific objectives. The first objective was met at Site 533, where on the Blake Outer Ridge, gas hydrates were identified by geophysical, geochemical, and geological studies. Gas-hydrate decomposition produced a volumetric expansion of 20:1 of gas volume to pore-fluid volume; this expansion exceeded by about a factor of four the volume of gas that could be released from solution in pore water under similar conditions. The gas hydrate includes methane, ethane, propane, and isobutane but apparently excluded normal butane and higher molecular weight hydrocarbons as predicted from gas hydrate crystallography. For the first time, marine gas hydrates were tested with a pressure core barrel. The second objective was achieved when coring at Site 534 in the Blake-Bahama Basin sampled the oldest oceanic sediments yet recovered. The sequence of oceanic basement and overlying sediments documents the geologic history of the early stages of the opening of the North Atlantic Ocean in detail. The oldest oceanic sediments are red claystones and laminated green and brown claystones of middle Callovian age. This finding supports the interpretation that the beginning of the modern North Atlantic occurred in the early Callovian (~155 m.y. B.P.), as much as 20 m.y. later in time than often previously thought