ライフサイエンスコーパス: plagioclase

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1 2-10 minutes, with pyroxenes, Fe-oxides, and plagioclase.

2 M of the PM10 was dominated by gypsum (36%), plagioclase (16%), Na sulphates (8%), and Fe-S-O phases

3 mineral weathering of silicate rocks such as plagioclase, a calcium-sodium silicate do not match calc

4 oxene (Fs6Wo1), chromium diopside (Fs3Wo47), plagioclase (An14Or4), graphite, troilite, chromite, dau

5 x-ray diffraction (XRD) instrument revealed plagioclase (~An57), forsteritic olivine (~Fo62), augite

6 T > 500 degrees C) isotopic exchange between plagioclase and nearly pristine meteoric fluid.

7 We find that carbonate, plagioclase and silica were melted and partly redistribu

8 nd 25% pigeonite), 40% sodic to intermediate plagioclase, and 15% olivine (forsterite 45% +/-5 to 10)

9 ts, containing normative olivine, pyroxenes, plagioclase, and accessory FeTi oxides.

10 wt % CaO) composed of olivine, Ti-magnetite, plagioclase, and clinopyroxene.

11 ica glass (SiO2), fractured and shock-melted plagioclases, and spherulitic glass.

12 nvestigated the effects of 0.05 M sulfate on plagioclase (anorthite) dissolution and subsequent miner

13 Plagioclase ( approximately 17 wt.% of bulk sample), tri

14 issolution of formation rocks, which contain plagioclase, can affect the safety and efficiency of the

15 sing these new constraints on disequilibrium plagioclase crystallization we also reproduce observed c

16 ata from 56 Thellier-Thellier experiments on plagioclase crystals separated from basalts of the Rajma

17 nt work on glassy melt inclusions trapped in plagioclase crystals to develop a method for tracking pr

18 provide sufficiently accurate prediction of plagioclase dissolution at such high salinities.

19 r current understanding of cation effects on plagioclase dissolution does not provide sufficiently ac

20 findings can contribute to better predicting plagioclase dissolution in geologic formations and will

21 sites, where sulfate can potentially affect plagioclase dissolution/precipitation.

22 as a representative mineral of Ca-containing plagioclase) dissolution under conditions closely releva

23 r and Sr/Y ratios, resulting from dominantly plagioclase extraction at slightly different pressures,

24 tope ratios measured from core to rim across plagioclase feldspar crystals can be used to monitor cha

25 imaging and analysis show that olivine and a plagioclase feldspar-rich mesostasis in the Lafayette me

26 s material and from regions composed of pure plagioclase feldspar.

27 n acquired its feldspar-rich crust by way of plagioclase flotation in a magma ocean.

28 Heterogeneous oxygen isotope compositions of plagioclase from the Boehls Butte anorthosite include so

29 New 40Ar/39Ar age determinations on plagioclase grains from deep boreholes in the basin reve

30 atios on agglutinates, volcanic glasses, and plagioclase grains from the Apollo sample collection.

31 d using electron backscatter diffraction, in plagioclase in andesite dome lavas from Volcan de Colima

32 epleted values (to -16 per mil) reported for plagioclase in meta-igneous rocks and indicate high-temp

33 ates that over 4.5 Ga of impact processing, plagioclase is on average weakly shocked (<15 GPa) and e

34 te the corresponding magma crystallinity and plagioclase-melt geothermometry to determine the tempera

35 ficult to explain the calcic compositions of plagioclase overgrowth rims and microphenocrysts unless

36 Our results show that plagioclase reaches equilibrium in 1-2 h, whereas ascent

37 d were compositionally less evolved than the plagioclase-rich rocks that followed.

38 A plagioclase separate from the Lagrange-1 exploration wel

39 We observe weak correlations between plagioclase shock state and some REE+Y systematics (e.g.

40 ents are used to illustrate the viability of plagioclase sinking in iron-rich basaltic liquids and th

41 Basaltic materials have more plagioclase than pyroxene, contain olivine, and are simi

42 the surface complexation between sulfate and plagioclase that can occur in GCS sites.

43 ts that a four to one mixture of pyroxene to plagioclase, together with about a 35 percent dust compo

44 To investigate how plagioclase trace-element systematics are affected by mo

45 dsorption of sulfate on anorthite, a Ca-rich plagioclase, was examined using attenuated total reflect

46 ow crystallisation ages are evaluated (e.g., plagioclase-whole rock Sm-Nd isochrons) and for what tra

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