Pumpellyite is a group of closely related sorosilicate minerals: pumpellyite-(Mg): Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH) pumpellyite-(Fe2+):...
4 KB (274 words) - 13:17, 13 August 2023
The prehnite-pumpellyite facies is a metamorphic facies typical of subseafloor alteration of the oceanic crust around mid-ocean ridge spreading centres...
1 KB (131 words) - 05:01, 17 September 2023
greywackes: prehnite + pumpellyite + chlorite + albite + quartz pumpellyite + chlorite + epidote + albite + quartz pumpellyite + epidote + stilpnomelane...
13 KB (1,402 words) - 19:59, 8 February 2024
undergoes low-grade metamorphism to metabasalt of the zeolite and prehnite-pumpellyite facies, but as the basalt subducts to greater depths, it is metamorphosed...
37 KB (4,414 words) - 09:37, 11 March 2024
zeolite, prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite facies assemblages...
19 KB (2,315 words) - 22:30, 2 March 2024
moganite) Chiastolite (variety of andalusite) Chlorastrolite (variety of pumpellyite-(Mg)) Chrysoprase (green nickel bearing chalcedony) Chrysotile (group...
42 KB (2,782 words) - 11:49, 1 September 2024
granites, syenites, or gneisses. It is an indicator mineral of the prehnite-pumpellyite metamorphic facies. It was first described in 1788 for an occurrence...
6 KB (531 words) - 08:16, 19 May 2024
Poudretteite Powellite Prehnite Prismatine Prosopite Proustite Psilomelane Pumpellyite Chlorastrolite (var.) Purpurite Pyrite Pyrargyrite Pyromorphite Pyrophyllite...
13 KB (867 words) - 01:34, 24 August 2024
Eclogite Blueschist Greenschist Prehnite- Pumpellyite Zeolite Granulite Amphibolite Hornfels Sanidinite P (kbar) T (°C) 0 100 200 300 400 500 600 700...
17 KB (2,160 words) - 14:08, 17 August 2024
zeolite, prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite facies assemblages...
67 KB (8,251 words) - 14:22, 3 September 2024
govern the development of aluminous mineral assemblages from the prehnite-pumpellyite facies to the granulite facies, as well as the blueschist facies and...
6 KB (683 words) - 00:33, 19 August 2023
chatoyancy can be subtranslucent to opaque. Cholorastrolite is a variety of pumpellyite: Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)•(OH) 2H 2O. Chlorastrolite was once...
4 KB (418 words) - 02:36, 23 August 2023
Eclogite Blueschist Greenschist Prehnite- Pumpellyite Zeolite Granulite Amphibolite Hornfels Sanidinite P (kbar) T (°C) 0 100 200 300 400 500 600 700...
12 KB (1,505 words) - 00:11, 17 June 2024
Julgoldite is a member of the pumpellyite mineral series, a series of minerals characterized by the chemical bonding of silica tetrahedra with alkali...
8 KB (962 words) - 19:13, 25 June 2024
included are: BS = Blueschist facies, EC = Eclogite facies, PP = Prehnite-Pumpellyite facies, GS = Greenschist facies, EA = Epidote-Amphibolite facies, AM...
6 KB (500 words) - 07:58, 22 August 2024
Pumpellyite Quartz found in the Keweenaw Fault...
4 KB (436 words) - 00:22, 27 May 2024
greenschist. Lower temperatures are transitional with and overlap the prehnite-pumpellyite facies and higher temperatures overlap with and include sub-amphibolite...
11 KB (1,151 words) - 20:46, 16 August 2024
of spherulites, of perlite, lithophysae, and low-temperature prehnite-pumpellyite facies sub-seafloor alteration is ubiquitous though often overprinted...
20 KB (2,537 words) - 22:35, 8 March 2024
Pressure Facies Low Low Zeolite Lower Moderate Lower Moderate Prehnite-Pumpellyite Moderate to High Low Hornfels Low to Moderate Moderate to High Blueschist...
51 KB (5,769 words) - 18:41, 25 July 2024
processes which turn sediments into sedimentary rocks, and prehnite-pumpellyite facies, which is a hallmark of subseafloor alteration of the oceanic...
3 KB (313 words) - 18:01, 15 July 2022
best U.S. locality for the species (certainly the best in New Jersey). Pumpellyite has been collected there as well. The county's largest leaf composting...
7 KB (848 words) - 04:33, 12 June 2023
Pharmacosiderite Pmsd Polarite Plr Pumpellyite-(Al) Pmp-Al Paravauxite Pvx Pharmazincite Pznc Poldervaartite Pdv Pumpellyite-(Fe2+ Pmp-Fe2+ Paravinogradovite...
180 KB (418 words) - 05:15, 30 June 2024
that this low metamorphic grade was the result of regional prehnite–pumpellyite to greenschist metamorphism caused by the widespread emplacement of granitic...
22 KB (2,656 words) - 01:25, 8 December 2023
Franciscan and Sanbagawa types. The rocks are characterized by prehnite-pumpellyite, blueschist or eclogite facies minerals. Metamorphism Metamorphic facies...
6 KB (587 words) - 17:02, 28 February 2021
copper from the Forest Lode. Quartz, epidote, calcite, prehnite, and pumpellyite are also found in the rock. Prehistoric mining pits indicate that the...
9 KB (1,240 words) - 14:20, 27 June 2024
sediments, cherts and basalts, ranging from sub-metamorphic to prehnite-pumpellyite or low-temperature blueschist (jadeite-bearing) grades of metamorphism...
25 KB (2,574 words) - 03:41, 1 August 2024
very low grade metamorphism in the pumpellyite–actinolite facies, with the development of the assemblage pumpellyite + actinolite + chlorite + sericite...
8 KB (1,032 words) - 14:43, 23 January 2024
belt, Oligocene to Miocene aged volcanic group basement rocks including pumpellyite and actinolite greyschist have erupted through the upper and lower greenschist...
19 KB (1,999 words) - 02:33, 24 June 2024
crystallinity associated with the zeolite facies of Southland and the pumpellyite-bearing facies of Otago, southern New Zealand". New Zealand Journal of...
2 KB (143 words) - 02:53, 4 June 2024
syncline's eastern limb. Indurated with widespread metamorphic prehnite, pumpellyite, and lawsonite, the formation is subdivided into Queens Beach, Incline...
12 KB (1,227 words) - 01:34, 24 July 2024