Sapphirine-bearing rocks with sedimentary and volcanogenic protoliths from the Arunta Block
AT least 15 separate localities for sapphirine-bearing rocks have been found in the Arunta Block, a Precambrian metamorphic complex in central Australia (Fig. 1), although only two have been documented in any detail1–3. Such rocks are the most spectacular examples of a suite of rocks with a distinctive, characteristic chemistry. This suite includes, inter alia, the better known cordierite–anthophyllite rocks, and is widely distributed both within the Arunta Block and world-wide. From field observations it is proposed here that two different geological processes, one sedimentary or diagenetic and the other volcanic, generated rocks that are now indistinguishable in their whole-rock chemistry and mineral assemblages. It had formerly been proposed that sapphirine-bearing rocks of volcanogenic and sedimentary origins were mineralogically and chemically distinct4.
Kornerupiue in metasomatic zones, Strangways Range, Central Australia
Summary The first known occurrence of kornerupine in Australia is described. The mineral is a minor component of a phlogopite-rich garnet-corundum-spinel metasomatic zone, which cuts mafic and ultranlafic spinel-plagioclase-orthopyroxene-hornblende rocks. The kornerupine-bearing assemblage was formed during the second major metamorphic episode that affected the terrain, probably under low-grade granulite or upper amphibolite facies conditions. Kornerupine appears to have formed at significantly lower levels of P-T than those reached in the terrain during the peak of the second granulite metamorphism.
Old English Manuscripts in the Early Age of Print: Matthew Parker and his Scribes
Covering the first dedicated program in the study of and publication of Anglo-Saxon texts, my dissertation examines the sixteenth-century origins of medieval studies as an academic discipline. By placing recent scholarship on media, materiality, cognition, and intellectual history in conversation with traditional paleographical methods on medieval and renaissance manuscript culture, I argue for a new way of understanding how early modern scholars studied and presented the medieval past. I take as my focus a corpus of emulative Anglo-Saxon manuscript transcriptions produced under Elizabethan Archbishop Matthew Parker. Equal parts facsimile and edition, these transcriptions are a unique example of early modern scholars navigating the often competing demands of late sixteenth century manuscript and print culture. This dissertation is, in part, an attempt to catalogue and document the extent of Parkerian Anglo-Saxon manuscript transcriptions. Temporally displaced from their source texts, Parker and his scribes directly modified many of the medieval manuscripts they recovered by editing, rebinding, cropping, and annotating them according to their own interpretive desires and publication needs. These transcriptions place Parker’s early modern scribes into the textual community of early medieval scribal culture, but their printed manuscript editions are an attempt to bring medieval documents into contemporary discourse. They developed new typefaces modeled on manuscript exemplars and attempted to reframe the printed version of a medieval text as an authoritative surrogate