Continental Shift

AFRICA IS FAILING. AFRICA IS SUCCEEDING. Africa is betraying its citizens. Africa is a place of starvation, corruption, disease. African economies are soaring faster than any on earth. Africa is squandering its bountiful resources. Africa is a roadmap for global development. Africa is turbulent. Africa is stabilising. Africa is doomed. Africa is the future. All of these pronouncements prove equally true and false, as South African journalists Richard Poplak and Kevin Bloom discover on their 9-year roadtrip through the paradoxical continent they call home. From pillaged mines in Zimbabwe to the creation of an economic marketplace in Ethiopia; from Namibia's middle class to the technological challenges facing Nollywood in the 21st Century; from China's investment in Botswana to the rush for resources in the Congo; and from the birth of Africa's newest country, South Sudan, to the worsening conflict in CAR, here are eight adventures on the trail of a new Africa. Part detective story, part report from this economic frontier, Continental Shift follows the money as it flows through Chinese coffers to international conglomerates, to heads of state, to ordinary African citizens, all of whom are intent on defining a metamorphosing continent.

Applying a broad geographical approach to comparative Latino literary and cultural studies, Continental Shifts illuminates how the discursive treatment of Latinos changed dramatically following the enactment of NAFTA—a shift exacerbated by 9/11. While previous studies of immigrant representation have focused on single regions (the US/Mexico border in particular), specific genres (literature vs. political rhetoric), or individual groups, Continental Shifts unites these disparate discussions in a provocative, in-depth examination. Bringing together a wide range of groups and genres, this intercultural study explores novels by Latin American and Latino writers, a border film by Tommy Lee Jones and Guillermo Arriaga, “viral” videos of political speeches, popular television programming (particularly shows that feature incarceration and public shaming), and user-generated YouTube videos. These cultural products reveal the complexity of Latino representations in contemporary discourse. While tropes of Latino migrants as threatening, diseased foreign bodies date back to the nineteenth century, Continental Shifts marks the more pernicious, recent images of Latino laborers (legal and not) in a variety of contemporary media. Using vivid examples, John Riofrio demonstrates the connections between rhetorical and ideological violence and the physical and psychological violence that has more intensely plagued Latino communities in recent decades. Culminating with a consideration of the “American” identity, this eye-opening work ultimately probes the nation’s ongoing struggle to uphold democratic ideals amid dehumanizing multiethnic tension.

Describes the expansion of the land-based paleomagnetic case for drifting continents and recounts the golden age of marine geoscience.

A report by the Physical Oceanography Panel of the National Research Council of the United States into the physical oceanographic aspects of the Environmental Studies Program. The Committee evaluated the quality and relevance of studies carried out in waters under federal control which extend from the limits of state jurisdictions (3-12 miles offshore) and include the central and outer continental shelf waters and the continental slope of the United States.

The resolution of the sixty-year debate over continental drift, culminating in the triumph of plate tectonics, changed the very fabric of Earth science. This four-volume treatise on the continental drift controversy is the first complete history of the origin, debate and gradual acceptance of this revolutionary theory. Based on extensive interviews, archival papers and original works, Frankel weaves together the lives and work of the scientists involved, producing an accessible narrative for scientists and non-scientists alike. This second volume provides the first extensive account of the growing paleomagnetic case for continental drift in the 1950s and the development of apparent polar wander paths that showed how the continents had changed their positions relative to one another, more or less as Wegener had proposed. Paleomagnetism offered the first physical measure that continental drift had occurred and helped determine the changing latitudes of the continents through geologic time.

The definitive account of the early debate over Wegener's theory of continental drift, based on extensive interviews and archival material.

The resolution of the sixty-year debate over continental drift, culminating in the triumph of plate tectonics, changed the very fabric of Earth science. This four-volume treatise on the continental drift controversy is the first complete history of the origin, debate and gradual acceptance of this revolutionary theory. Based on extensive interviews, archival papers and original works, Frankel weaves together the lives and work of the scientists involved, producing an accessible narrative for scientists and non-scientists alike. This fourth volume explains the discoveries in the mid 1960s which led to the rapid acceptance of seafloor spreading theory and how the birth of plate tectonics followed soon after with the geometrification of geology. Although plate tectonics did not explain the cause or dynamic mechanism of drifting continents, it provided a convincing kinematic explanation that continues to inspire geodynamic research to the present day.

The resolution of the sixty-year debate over continental drift, culminating in the triumph of plate tectonics, changed the very fabric of Earth science. This four-volume treatise on the continental drift controversy is the first complete history of the origin, debate and gradual acceptance of this revolutionary theory. Based on extensive interviews, archival papers and original works, Frankel weaves together the lives and work of the scientists involved, producing an accessible narrative for scientists and non-scientists alike. This third volume describes the expansion of the land-based paleomagnetic case for drifting continents and recounts the golden age of marine geology and geophysics. Fuelled by the Cold War, US and British workers led the way in making discoveries and forming new hypotheses, especially about the origin of oceanic ridges. When first proposed, seafloor spreading was just one of several competing hypotheses about the evolution of ocean basins.

The possibility that the continents of the earth have undergone major changes in position during the earth's history has fascinated scholars for at least three hundred years. Recently, evidence from several scientific disciplines has shown that the possibility must be very seriously considered in any study of the surface features of the earth. The first part of this volume consists of papers given at a symposium on continental drift, held at the annual meeting of the Royal Society of Canada in Charlottetown in June 1964. They present the views of three geophysicists, a botanist, and an astronomer. In these papers, the present evidence for or against continental drift is reviewed and the authors in most cases draw their own conclusions. The reader will find that there is not unanimous agreement in favour of drift. Nearly all discussions of continental drift stress the possible separation of the Americas from Europe and Africa. Considerable work has been done on the tracing of structures, on each side of the Atlantic Ocean, which might once have been connected. Geologists and geophysicists working in the Arctic or on the eastern seaboard of Canada have an important contribution to make to this subject. The second part of this volume, therefore, consists of a group of papers, also presented at the Charlottetown meeting, which throw light on the complicated crustal structure of these regions. In any attempt to reconstruct North America as part of Europe the features described in these papers will have to be taken into account. Once again, the reader will find differences of opinion on the question of whether the evidence favours a separation of our continent from Europe. Indeed, it is because the theory of continental drift us so difficult to confirm without ambiguity by direct observation that it remains controversial but exciting.