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Albion, MI, United States

Albion College is a private liberal arts college located in Albion, Michigan. Affiliated with the United Methodist Church, it was founded in 1835 and was the first private college in Michigan to have a chapter of Phi Beta Kappa. Its student population during the 2013-14 academic year was approx. 1,350.The College's athletic teams are nicknamed the Britons and their colors are purple and gold. They participate in NCAA Division III and the Michigan Intercollegiate Athletic Association .Albion College is a member of the Great Lakes Colleges Association and the Michigan Campus Compact, an organization dedicated to encouraging student volunteerism.As of 2013, Albion College was ranked No. 100 in the U.S. News & World Report list of national liberal arts colleges, and 115th in the Forbes list of America's Top Colleges, which includes universities as well as colleges. U.S. News also includes a high school counselor ranking, in which Albion placed 85th among national liberal arts colleges. Wikipedia.

Bacterial community diversity in marine bacterioplankton assemblages were examined in 3 coastal locations along the northeastern Gulf of Mexico (GOM) using 16S rRNA gene libraries and fluorescence in situ hybridization approaches. The majority of the sequences (30%-60%) were similar to the 16S rRNA gene sequences of unknown bacteria; however, the operational taxonomic units from members of the Cyanobacteria, Proteobacteria, and Bacteroidetes were also present at the 3 GOM sites. Overall, sequence diversity was more similar between the Gulf sites of Carrabelle and Ochlockonee than between either of the Gulf sites and Apalachicola Bay. Fluorescence in situ hybridization analyses revealed the quantitative predominance of members of the Alphaproteobacteria subclass and the Cytophaga-Flavobacterium cluster within the bacterioplankton assemblages. In general, the study further reveals the presence of many bacterial taxa that have been previously found to be dominant in coastal marine environments. Differences observed in the representation of the various bacterial phylogenetic groups among the GOM coastal sites could be partly attributed to dynamic variations in several site-specific conditions, including intermittent tidal events, nutrient availability, and anthropogenic influences. Source

Donaldson D.G.,Louisiana State University | Webb A.A.G.,Louisiana State University | Menold C.A.,Albion College | Kylander-Clark A.R.C.,University of California at Santa Barbara | Hacker B.R.,University of California at Santa Barbara
Geology | Year: 2013

The timing and nature of the India-Asia collision, Earth's largest ongoing continent-continent collisional orogen, are unclear. Ultrahigh-pressure metamorphism of Indian continental margin rocks is used as a proxy for initial collision because it indicates subduction of India. Records of this metamorphism are preserved only at Kaghan Valley (Pakistan) and Tso Morari (Ladakh, India), separated by ~500 km and having published ages of peak pressure of 46.2 ± 0.7 Ma and 53-51 Ma, respectively. The apparent ~6 m.y. age difference may reflect multiple subduction events, a large promontory along the former Indian margin, or inadequate constraints on the time of peak pressure recrystallization at Tso Morari. We present 108 coupled, in situ U/Th-Pb and rare earth element (REE) analyses of zircons in two Tso Morari eclogites to obtain age and petrologic information. The ages range from ca. 53 Ma to 37 Ma, and peak at ca. 47-43 Ma. Flat heavy REE slopes and the absence of an Eu anomaly are compatible with eclogite-facies zircon (re)crystallization. This (re)crystallization probably occurred at ultrahigh pressure, because 64% of the analyses are from zircon included in ultrahigh- pressure garnet and omphacite. These results are consistent with those from Kaghan Valley, and suggest that a single, protracted ultrahigh-pressure metamorphic event occurred contemporaneously across much of the orogen, following initial contact of the Indian and Asian continents at ca. 51 Ma or later. © 2013 Geological Society of America. Source

Smellie J.L.,University of Leicester | Wilch T.I.,Albion College | Rocchi S.,University of Pisa
Geology | Year: 2013

Lava-fed deltas are extraordinarily useful indicators of fossil water (and ice) levels in glacial, marine, and lacustrine environments. Deltas fed by 'a'ā lava should be at least as common as those sourced in pāhoehoe, yet they have been rarely described. Although facies models for pāhoehoe lava-fed deltas are well established, the architecture and lithofacies of 'a'ā-fed equivalents are substantially different and have thus far largely been unrecognized. This can have profound consequences for paleoenvironmental investigations, particularly those attempting to reconstruct past ice sheets. Essential features of 'a'ā lava-fed deltas include (1) a subaerial 'a'ā lava capping unit comprising massive internal sheet lava overlain by clinkers; (2) a crudely developed subaerial to subaqueous transition (passage zone); (3) a chaotic subaqueous association of abundant lava lobes and hyaloclastite with admixed vesicular, often reddened (oxidized) lava clinkers; and (4) rare subaqueous stratification with predominantly lower dips (̃10o-20o) than in deltas fed by pāhoehoe lava (̃25o-40o). We develop a generic facies model and investigate the emplacement conditions of 'a'ā lava-fed deltas in order to facilitate the recognition and environmental interpretation of these important sequence types in ancient successions. © 2013 Geological Society of America. Source

The diel change in abundance and community diversity of the bacterioplankton assemblages within the Pacific Ocean at a fixed location in Monterey Bay, California (USA) were examined with several culture-independent (i. e., nucleic acid staining, fluorescence in situ hybridization {FISH}, and 16S ribosomal RNA gene libraries) approaches over a tidal cycle. FISH analyses revealed the quantitative predominance of bacterial members belonging to the Cytophaga-Flavobacterium cluster as well as two Proteobacteria (α- and γ-) subclasses within the bacterioplankton assemblages, especially during high tide (HT) and outgoing tide (OT) than the other tidal events. While the clone libraries showed that majority of the sequences were similar to the 16S rRNA gene sequences of unknown bacteria (32% to 73%), however, the operational taxonomic units from members of the α-Proteobacteria, Bacteroidetes, Firmicutes, and Cyanobacteria were also well represented during the four tidal events examined. Comparatively, sequence diversity was highest in OT, lowest in low tide, and very similar between HT and incoming tide. The results indicate that the dynamics of bacterial occurrence and diversity appeared to be more pronounced during HT and OT, further indicative of the ecological importance of several environmental variables including temperature, light intensity, and nutrient availability that are also concurrently fluctuating during these tidal events in marine systems. © 2011 Springer Science+Business Media, LLC. Source

Li H.,Michigan State University | Mason D.E.,Albion College | Bieler T.R.,Michigan State University | Boehlert C.J.,Michigan State University | Crimp M.A.,Michigan State University
Acta Materialia | Year: 2013

A novel method for calculating the critical resolved shear stress (CRSS) ratios of different deformation system types in polycrystalline non-cubic metals has been developed. The mean CRSS ratios between different deformation systems were calculated for both commercially pure (CP) Ti and Ti-5Al-2.5Sn (wt.%) tensile deformed at ambient temperature and 455 C using an in situ scanning electron microscope-based testing technique combined with electron backscattered diffraction. It was found that the relative activity of the different deformation systems changes as a function of alloying composition and deformation temperature. Prismatic slip was the most active deformation mode for CP Ti. CP Ti exhibited a lower resistance to prismatic slip at both ambient and elevated temperatures compared with Ti-5Al-2.5Sn. For Ti-5Al-2.5Sn, prismatic slip was the most active deformation system at ambient temperature although the basal slip activity significantly increased compared to CP Ti, mostly likely due to an increased c/a ratio resulting in a closer packed basal plane. At 455 C, basal slip exhibited a lower CRSS than prismatic slip for Ti-5Al-2.5Sn. The relative activity of other deformation systems was also affected by alloying and temperature. The statistical resampling technique of bootstrapping was used to generate multiple equivalent data sets from which mean CRSS ratios between different deformation systems, and associated confidence intervals, could be deduced. It was found that the mean CRSS ratios at low and high strains varied slightly for the same testing conditions. Moreover, lesser activated slip systems resulted in relatively larger confidence intervals for the CRSS means. This variability may be attributed to a number of potential factors, including measurement errors, rotations of grains during deformation, local stress state variations, and work hardening. The analysis further suggests that awareness of the intrinsic statistical variability in CRSS ratios should be considered when formulating crystal plasticity constitutive models. © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. Source

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