Southern, Central, & Eastern Africa, ca. 1730 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Carte de l'Afrique meridionale : ou pays entre la ligne & le cap de Bonne Esperance et l'isle de Madagascar, par la veuve de Nicolas Visscher avec privilege. It was published by Chez Henry de Leth, Marchand de l'Estampes près de la Boursse ca. 1730. Scale [ca. 1:12,250,000]. Covers portions of Southern, Central, and Eastern Africa. Map in French and Dutch.The image inside the map neatline is georeferenced to the surface of the earth and fit to the Africa Sinusoidal projected coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Relief shown pictorially. Includes notes and insets: [Cabo de Bon Esperanca], Elevation du port et Mont Table au Cap de Bonne Esperance and Plan du port et Mont Table au Cap de Bonne Esperance.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

al- Nahj al-qawīm hadīyah li-man talaqqāhā bi-qalb salīm : manuscript, [ca. 1900]

The text starts with a praise of the Sultan Abdülhamid and his governor Osman Nuri Paşa. Then it discusses the necessity of obedience to the Sultan and the authorities from a religious point of view. It then touches briefly on several ethical issues. The text may or may not be complete at the end.

Lithologic, mineral, chemical and isotopic compositions of altered rocks with increasing distance across the eastern flank of the Juan de Fuca Ridge, ODP Leg 168 data

During ODP Leg 168, 10 sites were drilled across the eastern flank of the Juan de Fuca Ridge (JdFR), to examine the conditions of fluid-rock interaction in three distinct hydrothermal regimes (referred to as the Hydrothermal Transition (HT), Buried Basement (BB) and Rough Basement (RB) transects), extending over a ~120 km linear transect perpendicular to the spreading ridge. This was carried out in an attempt to constrain the conditions and processes that control the location, style and magnitude of low temperature (<150°C) fluid-rock interaction within this setting. This paper presents new data on the petrology, mineral chemistry and whole rock strontium and oxygen isotopic compositions of basalts from the eastern flank of the JdFR, in order to investigate the extent, style and sequence of low-temperature hydrothermal alteration and to establish how the hydrothermal regime evolved with time. Throughout the flank, a progressive sequence of low-temperature hydrothermal alteration has been identified, marked by changes in the dominant secondary mineral assemblage, changing from: chlorite+chlorite/smectite; to iron oyxhydroxide+celadonite; to saponite+/-pyrite; culminating at present with Ca- to CaMg(+/-Fe,Mn)-carbonate. The changes in secondary mineralogy have been used to infer a series of systematic shifts in the conditions of alteration that occurred as the basement moved off-axis and was progressively buried by sediment. In general, hydrothermal alteration of the uppermost oceanic crust commenced under open, oxidative conditions, with interaction between unmodified to slightly modified seawater and basaltic crust, to a regime in which circulation of a strongly modified seawater-derived fluid was more restricted, and alteration occurred under non-oxidative conditions. Across the flank, petrological observations and microprobe analyses indicate that the observed ranges in secondary mineral composition are directly related to changes in the geochemical and textural characteristics of the basement, as well as to interaction between fluids and phases from the four stages of alteration. This is suggestive of an increase in fluid-rock increased with time. Whole rock 87Sr/86Sr and d18O analyses of basalts from across the eastern flank of the JdFR reinforce petrological observations, with 87Sr/86Sr and d18O values slightly elevated above accepted pristine MORB values for this region. These results are consistent with an increase in the amount of fluid-rock interaction with time. Across the flank, enrichment in the 87Sr/86Sr and d18O relative to MORB, is influenced by a number of factors, including: local and regional variations in the crustal lithology and structure; the age of the crust; the extent of bulk rock alteration; and theoretically, the relative abundance of different isotopically-enriched secondary mineral phases in the crust.

Concentrations and isotopic compositions of low molecular weight hydrocarbons in hydrothermal fluids from ODP Field, Middle Valley, northern Juan de Fuca Ridge

The presence of sedimentary organic matter blanketing midocean ridge crests has a potentially strong impact on metal transport in hydrothermal vent fluids. To constrain the role of organic matter in metal mobility during hydrothermal sediment alteration, we reacted organic-rich diatomaceous ooze from Guaymas Basin, Gulf of California, and organic-poor hemipelagic mud from Middle Valley, northern Juan de Fuca Ridge, with seawater and a Na-Ca-K-Cl fluid of seawater chlorinity, at 275° to 400°C, 350 to 500 bars, and initial fluid: sediment mass ratios ranging from 1.6 to 9.8. Reaction of these fluids with both sediment types released CO2 and high concentrations of ore-forming metals (Fe, Mn, Zn, Pb) to solution. Relatively low concentrations of Cu were observed in solution and likely reflect the reducing conditions that resulted from the presence of sedimentary organic matter. Both the concentrations of CO2 and dissolved metals were lower in fluids reacted with Middle Valley sediment compared with aqueous concentrations in fluids reacted with Guaymas Basin sediment. During alteration of both sediment types, metal concentrations varied strongly as a function of temperature, increasing by up to an order of magnitude over the 75°C range of each experiment. Major element fluid chemistry and observed alteration assemblages suggest that during hydrothermal alteration of organic-lean sediment from Middle Valley a feldspar-quartz-illite mineral assemblage buffered in situ pH. In contrast, data from the experimental alteration of organic-rich Guaymas Basin sediment suggest that a calcite-plagioclase-quartz assemblage regulated in situ pH. Fluid speciation calculations suggest that in situ pH during Guaymas Basin sediment alteration was lower than during alteration of Middle Valley sediment and accounts for the substantially greater metal mobility at a given temperature and pressure during the former experiment. Comparison of our results with the results of basalt alteration experiments indicate that except for Cu, hydrothermal sediment alteration results in equal or greater concentrations of ore-forming metals at a given temperature and pressure. Accordingly, the presence of ore-forming metals in fluids currently venting from sediment-covered hydrothermal systems at concentrations substantially lower than in fluids from bare-rock systems may reflect chemical reequilibration during subsurface cooling within the sediment pile.

Cervantes y la Orden Trinitaria /

"Colección de artículos publicados en la revista trinitaria "El Santo trisagio."

Memoria analictica de las aguas minerales sulfurosas frias de la fuente llamada de S. Juan en el pueblo de Guitiriz /

Antigua Signatura Ca 2799(20)

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallara el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Mode of access: Internet.

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallara el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Assistencia a la missa rezada y a la cantada en general, 94 p.

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallara el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Mode of access: Internet.

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallara el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Assistencia a la missa rezada y a la cantada en general, 94 p.

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallará el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Assistencia a la missa rezada y a la cantada en general, 94 p.

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallará el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Assistencia a la missa rezada y a la cantada en general, 94 p.

Assistencia de los fieles a los divinos oficios y missas de el año : donde se hallara el seglar aprovechado ... tocante a lo que se canta en la Iglesia ... y ritos conforme a lo mandado por el Santo Concilio de Trento ...

Assistencia a la missa rezada y a la cantada en general, 94 p.