In-situ proton-microprobe analyses are presented for glasses, plagioclases, pyroxenes, olivines, and spinels in eleven samples from Sites 834-836, 839, and 841 (vitrophyric rhyolite), plus a Tongan dacite. Elements analyzed are Mn, Ni, Cu, Zn, Ga, Rb, Sr, Y, Zr, Pb, and Sn (in spinels only). The data are used to calculate two sets of partition coefficients, one set based on the ratio of element in mineral/element in coexisting glass. The second set of coefficients, thought...

Sediments from five Leg 167 drill sites and three piston cores were analyzed for Corg and CaCO3. Oxygen isotope stratigraphy on benthic foraminifers was used to assign age models to these sedimentary records. We find that the northern and central California margin is characterized by k.y.-scale events that can be found in both the CaCO3 and Corg time series. We show that the CaCO3 events are caused by changes in CaCO3 production by plankton, not...

These are the results structure analyses performed by FRAPPE, with default settings and K ranging from 2 to 16, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations. For each analysis, each line corresponds to an individual. The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPPE for the individual. The...

The data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources. The combined dataset consisted in 3146 autosomal SNPs for 4025 individuals from 167 populations. It was analyzed using FRAPPE, with default settings, and for K ranging from 2 to 16. For each value of K, the resulting ancestry profiles were averaged within each population, and a chi-squared distance between the average ancestry profiles were...

The data and the results are not yet public. But you can already have access to the code allowing automatic analysis AND publishing of my data using R. the analysispkc42.r is the main code which call for the two others. A video showing how it is used in linked below (another figshare article)

Archive of work produced using the resources of the Imperial College High Performance Computing Service.

This paper is dedicated to the geochemical studies of two bottom sediment cores that were taken during cruise 28 of the R/V Professor Logachev in the Mid-Atlantic Ridge (MAR) 16°38'N area in 2006. The chemical compositions of background metalliferous and ore (ore-bearing) carbonate sediments are presented and inter-element correlations are examined. Individual episodes are distinguished in the accumulation history of the ore-bearing and metalliferous sediments on the basis of element factor analysis.

Basalts recovered on DSDP Leg 92 include all the major basalt types so far recovered from the ocean crust of the eastern Pacific. Basalts from Holes 597, 597A, 597B, 597C, and 599B are tholeiites exhibiting all the mineralogical and geochemical characteristics of N-type mid-ocean ridge basalts (MORB). Fragments of ferrobasalts and alkali basalts were also obtained, however, from Holes 60IB and 602B, respectively. Hole 597C, which penetrated 91 m into basement and is the deepest...

New major, trace element, and isotope data (Pb, Sr, and Nd) reveal an impressive compositional variation in the basalts recovered from Site 834. Major element compositions span almost the entire range observed in basalts from the modern axial systems of the Lau Basin, and variations are consistent with low-pressure fractionation of a mid-ocean-ridge-basalt (MORB)-like parent, in which plagioclase crystallization has been somewhat suppressed. Trace element compositions deviate from MORB in all but one unit (Unit...

Ocean Drilling Program Leg 135 provided igneous rock cores from six sites drilled on a transect across the Lau Basin between the Lau Ridge remnant arc and the modem spreading ridges of the Central and Eastern Lau Spreading Centers. The drill cores sampled crust from the earliest stage of backarc extension (latest Miocene time, about 6 Ma), and younger crust (late Pliocene, about 3.8-2 Ma, and middle Pleistocene, about 0.64-0.8 Ma). Nearly all of the...

Two bottom sediment cores (BP00-23/7 and BP00-7/6) recovered from the Yenisei transect in the southern Kara Sea are described. Data on their grain size composition, clay and heavy mineral assemblages, and distribution of a large group of chemical elements are presented. Radiocarbon dates based on AMS C-14 method suggest the Holocene age of sediments in the cores. Literature data on physical properties and foraminifers have also been analyzed. The facies affiliation of the lithostratigraphic subdivisions...

Example visualizations from the NeuroTrends project.

• This is a gliding motility assay using kinesin-1 and rhodamine labeled microtubules. • The buffer used was PEM (also known as BRB80) with the inclusion of 22063mM D2O. • Images were taken with an Andor Luca EMCCD camera on an Olympus IX-71 microscope using a 60x 1.42NA PlanApo objective. • This fileset is replicate 1/3 and ROI 5/15. • Images were taken to investigate speed variations of microtubules due to the inclusion of D2O...

Three lower Barremian to middle/upper Cenomanian samples from DSDP Hole 549 and three lower Cenomanian to lower Maestrichtian samples from DSDP Hole 550B were investigated by organic geochemical and organic petrographic methods. The samples came from wells drilled in the area of the Goban Spur in the northeastern Atlantic; they represent gray to greenish gray carbonaceous mud or siltstones from the deeper parts of the Cretaceous sequences penetrated and light-colored chalks from the shallower ones.The...

In northern regions where observational data is sparse, lake ice models are ideal tools as they can provide valuable information on ice cover regimes. The Canadian Lake Ice Model was used to simulate ice cover for a lake near Churchill, Manitoba, Canada throughout the 2008/2009 and 2009/2010 ice covered seasons. To validate and improve the model results, in situ measurements of the ice cover through both seasons were obtained using an upward-looking sonar device Shallow...

Two short time intervals centered at 2.3 and 4.7 Ma were studied to investigate short-term variations in surface-ocean processes as indicated by changes in the radiolarian microfossil population. These time intervals represent two different settings of late Neogene climate. The older interval represents a time when tropical circulation between the Pacific and Atlantic oceans was not blocked by the Isthmus of Panama, whereas the younger interval represents a time when Northern Hemisphere glaciation was present...

A group of 46 radiolarian species was used in this study of Leg 138 sites. The recovery of the sections was complete in the intervals that were cored using the APC system and nearly complete in the deeper sections. The northeastern sites (844 and 845) were sampled down through the middle Miocene into the uppermost part of the lower Miocene (middle part of the Calocycletta costata Zone). In the southeastern sites and those of the...

Setup can be found below. Based on the results in the *.png file, I would consider this experiment inconclusive and possibly a failed experiment. It's kinda relieving and fun to post negative/failed data!

This is the second trial in the Repeating Crumley Experiment with tobacco seeds grown in 33% D2O mixed with DI Water. This experiment was a failed experiment due to an issue with the building heating and cooling system. Plant seeds grew in inconsistent manners and stopped growing after a couple days. Links to relevant information is shown below including, experimental background, products, and daily notes.

Archive of work produced using the resources of the Imperial College High Performance Computing Service.

de Rigo, D., Corti, P., Caudullo, G., McInerney, D., Di Leo, M., San Miguel-Ayanz, J., 2013. Toward open science at the European scale: Geospatial Semantic Array Programming for integrated environmental modelling. Geophysical Research Abstracts 15, 13245+. ISSN 1607-7962, European Geosciences Union (EGU). This is the authors’ version of the work. The definitive version is published in the Vol. 15 of Geophysical Research Abstracts (ISSN 1607-7962) and presented at the European Geosciences Union (EGU) General Assembly...