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Captive
A woman's quest to save Africa's wildlife turns lethal. A very eager - and rather naive - Australian lawyer, Kerry Maxwell, flies into South Africa to volunteer at a wildlife orphanage run by notorious vet, Graham Baird. Graham is as jaded and reckless as Kerry is law-abiding and optimistic. When Kerry arrives at the animal sanctuary it's to the news that Graham is imprisoned in Mozambique following a shootout with elephant poachers. In the gunfight he killed the brother of corrupt politician and poaching kingpin Fidel Costa. Kerry's earnest sense of justice takes her to Massingir to help Graham with his case, and into a world of danger. Kidnapped, chased, attacked and betrayed, Kerry learns the bitter truth about the complexities and deadly nature of the war on poaching. Even the motivations of well-meaning charities, wealthy donors and private zoos are not all they appear. Kerry's perilous entanglement may be what Graham needs to shake off his drunken cynicism and rejoin the fight for Africa's animals, but is it enough, and in time, to stop Costa's quest for revenge...
Timescales of Magmatic Processes
Quantifying the timescales of current geological processes is critical for constraining the physical mechanisms operating on the Earth today. Since the Earth’s origin 4.55 billion years ago magmatic processes have continued to shape the Earth, producing the major reservoirs that exist today (core, mantle, crust, oceans and atmosphere) and promoting their continued evolution. But key questions remain. When did the core form and how quickly? How are magmas produced in the mantle, and how rapidly do they travel towards the surface? How long do magmas reside in the crust, differentiating and interacting with the host rocks to yield the diverse set of igneous rocks we see today? How fast are vo...
Merapi Volcano
This book provides the first comprehensive compilation of cutting-edge research on Merapi volcano on the island of Java, Indonesia, one of the most iconic volcanoes in the world. It integrates results from both the natural (geology, petrology, geochemistry, geophysics, physical volcanology) and social sciences, and provides state-of-the-art information on volcano monitoring, the assessment of volcanic hazards, and risk mitigation measures. As one of Indonesia’s most active and dangerous volcanoes, Merapi is perhaps best known for its pyroclastic density currents, which are produced by gravitational or explosive lava dome failures (commonly referred to as Merapi-type nuées ardentes). Merapi’s eruptions have posed a persistent threat to life, property and infrastructure within the densely populated areas on the volcano’s flanks, as demonstrated most recently by catastrophic eruptions, which attracted worldwide media interest.
Caldera Volcanism
This volume aims at providing answers to some puzzling questions concerning the formation and the behavior of collapse calderas by exploring our current understanding of these complex geological processes. Addressed are problems such as:- How do collapse calderas form? - What are the conditions to create fractures and slip along them to initiate caldera collapse and when are these conditions fulfilled? - How do these conditions relate to explosive volcanism?- Most products of large caldera-forming eruptions show evidence for pre-eruptive reheating. Is this a pre-requisite to produce large volume eruptions and large calderas?- What are the time-scales behind caldera processes? - How long does...
The 2020-21 Eruption of La Soufrière Volcano, St Vincent
Volcanic eruptions are complex and inherently uncertain, making the management of a potentially explosive eruption on a small island with limited resources extremely difficult. This volume presents scientific findings from the 2020–21 eruption of La Soufrière Volcano, on the island of St Vincent in the Eastern Caribbean. This involved three months of effusive activity that escalated rapidly to 13 days of explosive activity, beginning with an intense two days of near-continuous ash venting and explosions. The book contains an introduction and 17 papers, split into two parts: the first presents geological and volcanological advances, whereas the second documents and analyses the impacts of the eruption and the challenges presented for the management of the volcanic crisis. This volume represents both significant contributions to the knowledge of the Soufrière eruptive system and important insights into the ways and means by which volcanic eruptions of this type impact on populations at risk. It also provides detailed insights into the most effective communication processes through this type of crisis.
The Petrology and Geochemistry of Diverse Crustal Xenoliths, Tatara-San Pedro Volcanic Complex, Chilean Andes
Deux groupes de xénolites ont été échantillonnés dans une lave dacitique du Volcán Holocène San Pedro (Andes du Chili ; 36°S, 71°51'W). Le groupe I est constituté de mélanorites à olivine qui sont co-magmatiques au volcanisme Holocène. Le groupe II consiste en des leuconorites à clinopyroxène et hornblende qui représentent des fragments du soubassement pré-quarternaire du volcan. Malgré leur différence d'âge et d'origine, ces deux groupes de xénolites ont enregistré des processus de migration de liquides riches en Si02 et H2O ou de fluides aqueux qui ont réagit avec l'olivine, le spinelle, les pyroxènes ou le plagioclase pour former d'importantes quantités de horblende (50%) et phlogopite (12%), expliquant ainsi l'abondance de hornblende dans les plutons gabbroïques calco-alcalins, comparée aux laves basaltiques ou basaltiques andésitiques présentes dans les zones de subduction.
¡Fidel is Dead!
“Isolation has not worked...it’s time for a new approach” – President Barack Obama, Dec. 17, 2014 Cuba was forever changed by Fidel Castro's revolution that turned the island into a single-party Communist state. Half a century later, the nation has suffered under stifling policies and a lack of political freedom. Journey through the historical origins of the Caribbean nation and the consequences of this seminal event. Explore the ins-and-outs of past and present Cuba, and decide for yourself what lies in its political horizon. Now, the United States and Cuba have embarked on a new relationship as President Barack Obama declared an end to the diplomatic freeze with the island. While Obama spoke to Americans, Raul Castro addressed his island. He spoke about the profound differences in human rights and foreign policy, and how regardless of those differences they must learn to coexist "in a civilized manner." With a new dialogue underway, the future of Cuba appears ready to move forward.
Fidel's Gift
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