4,544 research outputs found
The Peninsular journal of medicine.
No full textThe Peninsular journal of medicine and the collateral sciences, 1853-1858, and the Peninsular and independent journal, 1858-1860, are regarded as vol. 1-8 of this.Vol. 11 edited by J. J. Mulheron and T. F. Kerr; vol. 12 by J. J. Mulheron.Vol. 12 called new series, v. 1.Mode of access: Internet.After December 1876, united with the Detroit review of medicine and surgery, to form the Detroit medical journal
F. Ed Spooner and R. Davis in conversation, 1909 Glidden Tour , Detroit, Mich.
No full text4.5x6.75 black and white photograph of two men talking; F. Ed Spooner and Davis, at Detroit, Michigan, 1909. Negative #C21,440. Photo edges cut unevenly
Petrogenesis of lavas from Detroit Seamount: Geochemical differences between Emperor Chain and Hawaiian volcanoes
No full textThe Hawaiian Ridge and Emperor Seamount Chain define a hot spot track that provides an 80 Myr record of Hawaiian magmatism. Detroit Seamount (∼76 to 81 Ma) is one of the oldest Emperor Seamounts. Volcanic rocks forming this seamount have been cored by the Ocean Drilling Program at six locations. Only tholeiitic basalt occurs at Site 884 on the eastern flank and only alkalic basalt, probably postshield lavas, occurs at Sites 883 and 1204 on the summit plateau. However, at Site 1203 the basement core (453 m penetration) includes four thick flows of pahoehoe alkalic basalt underlying ∼300 m of volcaniclastic rocks interbedded with submarine erupted tholeiitic basalt. The geochemical characteristics of these alkalic lavas indicate that phlogopite was important in their petrogenesis; they may represent preshield stage volcanism. The surprising upward transition from subaerial to submarine eruptives implies rapid subsidence of the volcano, which can be explained by the inferred near-ridge axis setting of the seamount at ∼80 Ma. A near-ridge axis setting with thin lithosphere is also consistent with a shallow depth of melt segregation for Detroit Seamount magmas relative to Hawaiian magmas, and the significant role for plagioclase fractionation as the Detroit Seamount magmas evolved in the crust. An important long-term trend along the hot spot track is that 87Sr/86Sr decreases in lavas erupted from ∼40 to 80 Ma. Tholeiitic basalt at Site 884 on Detroit Seamount is the extreme and overlaps with the 87Sr/86Sr-143Nd/144Nd field of Pacific mid-ocean ridge basalts (MORB). Complementary evidence for a depleted component in Detroit Seamount lavas is that relative to Hawaiian basalt, Detroit Seamount lavas have lower abundances of incompatible elements at a given MgO content. These lavas, especially from Sites 883 and 884, trend to extremely unradiogenic Pb isotopic ratios which are unlike MORB erupted at the East Pacific Rise. A component with relatively low 87Sr/86Sr and 206Pb/204Pb is required. Lavas erupted from a spreading center in the Garrett transform fault, 13°28′S on the East Pacific Rise, have this characteristic. A plausible hypothesis is mixing of a plume-related component with a component similar to that expressed in lavas from the Garrett transform fault. However, basaltic glasses from Detroit Seamount also have relatively high Ba/Th, a distinctive characteristic of Hawaiian lavas. We argue that all Detroit Seamount lavas, including those from Site 884, are related to the Hawaiian hot spot. Rejuvenated stage Hawaiian lavas also have high Ba/Th and define a trend to low 87Sr/86Sr and 206Pb/204Pb. We speculate that rejuvenated stage lavas and Detroit Seamount lavas sample a depleted mantle component, intrinsic to the plume, over the past 80 Myr
The Standard-Detroit Tractor
No full textThe Standard-Detroit Tractor Company Advertisement, 'Announcing the New and Sensational T-R-A-C-F-O-R-D.' January 13, 1917. Note: By the second decade of the Twentieth Century the Ford Model T was ubiquitous. Seen as more than a form of transportation, innovators quickly found ways to harness the gasoline engine to meet the needs of farmers and ranchers
Handbook of paintings by the old masters belonging to the Detroit Museum of art.
No full textMode of access: Internet
Group of men in front of the Hotel Pontchartrain for the start of the 1909 Glidden Tour, Detroit, Mich.
No full text4.5x6.75 black and white photograph of the front entrance of the Pontchartrain Hotel, downtown Detroit, decorated with United States flags and flowers, sign reads 'Headquarters Glidden Tour, A.A.A. Frank B. Hower, Chairman Contest Board,' crowd of men in front of hotel entrance. Caption on photo back: 'F. B. Hower was his own best advertiser at the Pontchartrain Hotel.' Negative #C22,396
Detroit Bowling Community
No full textThe bowling community has changed and specially for Detroit. The change of the bowling community can be compared with the change of social capital. A new 21st century bowling typology can help Detroit to be the bowling Capital of the World again.Design as PoliticsArchitectureArchitectur
Detroit and the pleasure resorts of northern Michigan. Compliments of passenger department.
No full text83 pp
Inscrivez déclin du temps. Detroit : La montée el la crisis des Industriels Ville
No full textAt the beginning of the 20th century, Detroit was a dynamic rising city. It was the fourth largest city in the United States, the capital of the automobile industry. City’s growth lasted till the 1950s, when the first signs of stagnation appeared despite the economic boom of the country and its metropolitan area. This crisis persists until today, when Detroit has become the symbol of industrial cities in decay. These two divergent images (boom and crisis) seem unable to explain by themselves the intensity and persistence of Detroit’s decline. Cross-analysis of the interactions between economic growth, public policies and urban transformations on the long term will emphasize the continuities in urban development. It will also allow comprehending the effects of growth process on subsequent decline.A comienzos del siglo XX, Detroit era una ciudad dinámica en pleno desarrollo. Pronto se convirtió en la cuarta ciudad de Estados Unidos, la capital de la naciente industria automovilística. El crecimiento se prolongó hasta finales de los años 50, cuando, a pesar del auge económico de Estados Unidos y de su área metropolitana, Detroit comenzó a mostrar los primeros signos de estancamiento. La crisis se ha prolongado hasta hoy, cuando Detroit constituye el paradigma de la ciudad industrial en declive. Estas dos imágenes contrapuestas, el auge y la crisis, no parecen explicar por sí mismas las causas de la intensidad y persistencia del declive de Detroit. Analizar las interacciones entre crecimiento económico, políticas públicas locales y desarrollo urbano a lo largo del tiempo permitirá subrayar las continuidades y comprender en qué medida el declive de Detroit ancla sus raíces en el modelo planteado durante la etapa de auge.Dans le début du XXe siècle, Detroit était une ville animée en plein essor. Bientôt, il est devenu la quatrième ville des États-Unis, la capitale de l'industrie automobile naissante. La croissance a continué jusqu'à la fin des années 50, lorsque, malgré le boom économique aux États-Unis et sa région métropolitaine, Detroit a commencé à montrer les premiers signes de stagnation. La crise a duré jusqu'à aujourd'hui, où Detroit est le paradigme de la ville industrielle en déclin. Ces deux images contrastées, le boom et la crise ne semblent pas eux-mêmes expliquer les causes de l'intensité et la persistance de la baisse de Detroit. Analyser les interactions entre la croissance économique, les politiques publiques locales et le développement urbain dans le temps permettent de souligner les continuités et de comprendre dans quelle mesure la baisse de Detroit ancre ses racines dans le modèle proposé au cours de la phase d'expansion
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