“Half Bacchanalian,Half Devout”: White Intellectuals,Black Folk Culture,and the “Negro Problem”

In the wake of the Civil War, white Americans generated an unprecedented amount of writing about the songs, stories, and “superstitions” of black southerners. This interest was not purely esthetic. In the late nineteenth century, folk culture was commonly conceptualized as a gauge of racial character and potential; in consequence, discourse on black folklore was entangled with the debate on the social and political place of African Americans. A number of scholars have noted the ways in which white supremacy was bulwarked by the work of folklorists, ethnologists, local color writers, and other intellectuals. The variety and contingency of this discourse on race, however, has sometimes been obscured, giving the impression of a static and monolithic racial ideology. Ideas about black folk culture shifted over time, shaped by a range of racial attitudes encompassing a liberal emphasis on uplift, a conservative commitment to stasis, and a radical insistence on regression. Moreover, the racial politics of intellectuals determined not only the ways in which they represented black folk culture, but also the particular cultural forms about which they wrote. Thus, while the Christian content of the “spirituals” suited the agenda of liberal reformers, the supposedly sinister figure of the conjure doctor complemented radical discourse on dangerous racial degeneration.     

Changes in fluid pathways in a calcite vein mesh (Natih Formation,Oman Mountains): insights from stable isotopes

We present a structural, microstructural, and stable isotope study of a calcite vein mesh within the Cretaceous Natih Formation in the Oman Mountains to explore changes in fluid pathways during vein formation. Stage 1 veins form a mesh of steeply dipping crack‐seal extension veins confined to a 3.5‐m‐thick stratigraphic interval. Different strike orientations of Stage 1 veins show mutually crosscutting relationships. Stage 2 veins occur in the dilatant parts of a younger normal fault interpreted to penetrate the stratigraphy below. The δ¹⁸O composition of the host rock ranges from 21.8‰ to 23.7‰. The δ¹³C composition ranges from 1.5‰ to 2.3‰. This range is consistent with regionally developed diagenetic alteration at top of the Natih Formation. The δ¹⁸O composition of vein calcite varies from 22.5‰ to 26.2‰, whereas δ¹³C composition ranges from ?0.8‰ to 2.1‰. A first trend observed in Stage 1 veins involves a decrease of δ¹³C to compositions nearly 1.3‰ lower than the host rock, whereas δ¹⁸O remains constant. A second trend observed in Stage 2 calcite has δ¹⁸O values up to 3.3‰ higher than the host rock, whereas the δ¹³C composition is similar. Stable isotope data and microstructures indicate an episodic flow regime for both stages. During Stage 1, formation of a stratabound vein mesh involved bedding‐parallel flow, under near‐lithostatic fluid pressures. The ¹⁸O fluid composition was host rock‐buffered, whereas ¹³C composition was relatively depleted. This may reflect reaction of low ¹³C CO₂ derived by fluid interaction with organic matter in the limestones. Stage 2 vein formation is associated with fault‐controlled fluid flow accessing fluids in equilibrium with limestones about 50 m beneath. We highlight how evolution of effective stress states and the growth of faults influence the hydraulic connectivity in fracture networks and we demonstrate the value of stable isotopes in tracking changes in fluid pathways.     

Learning from history? From Soviet collapse to the ‘new’ Cold War

Many moments in what we now rather lamely call the ‘end of the Cold War’ have been examined in detail. However, within the extraordinarily rich literature that has arisen over the past 25 years, little attention has been paid thus far to one very important problem: the part played by ‘history’ in shaping the way different actors tried to make sense of what was going on around them in a time of rapid transition.