 | | Journal (article/letter/editorial) | | Investigation of the Upper Thermal Stability of Mg-rich Actinolite; Implications for Kiruna-Type Iron Deposits HAROLDO...BINGHAMTON, NY 13902-6000, USA The occurrence of actinolite in magnetite deposits of possible magmatic origin...thermal stability of Mg-rich actinolite to determine how the stability of actinolite changes with increasing...202O6), quartz, and water to a more Fe-rich actinolite over the range of 600^8808C, 1 and 4 kbar, at...composition of the mineral mixture is close to actinolite with Fe-number ¼ 05.These experiments constitute |  | | Journal (article/letter/editorial) | | shale, CS pebble-bearing tuffaceous sandstone, AN andesite, FS tuffaceous siltstone, TM tuff, HF mica-bearing...sites for long and short drillings, respectively. andesite lavas with pillow structure in some parts. The...the present study. On the contrary, a limestone quarry is operated in Skarn No. III zone, several hundreds...hundreds meters southeast of Sn O.B. A small limestone quarry is also present at the upper part of the Sumugou...Mg/(Mg+Fe2+)<0.5, AlVl>Fe3+, (Na+K)A>0.5 Feedn: ferro-edenite………... Si>6.5, Mg/(Mg+Fe2+)<0.5, (Na+K)A>0 |  | Yu, M., Feng, C. -Y., Zhu, Y. -F., Mao, J. -W., Zhao, Y. -M., Li, D. -X. (2017) Multistage amphiboles from the Galinge iron skarn deposit in Qiman Tagh, western China: evidence of igneous rocks replacement. Mineralogy and Petrology, 111 (1) 81-97 doi:10.1007/s00710-016-0459-x | Journal (article/letter/editorial) | | of compositionally distinct amphiboles: Amp-I: Ferro-edenitic hornblende (FE); Amp-II: Deep bluish-green...magnesian-hastingsite (MH); Amp-III: Light greenish-beige ferro-actinolite (FA). The Amp-I preserves the primary igneous...amphiboles replacing edenite in the first stage and actinolite replacing amphiboles in the second stage, as...altered basaltic andesite rocks. This study focuses on the altered basaltic andesite rocks in the IV,...including epidote, magnesian-hastingsite, ferro-actinolite, tourmaline, axinite, chlorite, phlogopite |  | Kim, Namhoon, Koh, Sang-Mo, You, Byoung-Woon, Lee, Bum Han (2021) Mineralogy, Geochemistry, and Age Constraints on the Axinite-Bearing Gukjeon Pb–Zn Skarn Deposit in the Miryang Area, South Korea. Minerals, 11 (6) 619 doi:10.3390/min11060619 | Journal (article/letter/editorial) | | (hedenbergite), amphibole (actinolite and ferro-actinolite), axinite (tizenite and ferro-axinite), and epidote...82.8 Ma) and boron-rich intrusion (porphyritic andesite in Beomdori andesitic rocks, 83.8 Ma) in a back-arc...alteration minerals (i.e., clinopyroxene, grossular, actinolite, axinite, and epidote) and skarn sulfide minerals...comprises aphanitic andesite, Miryang andesite, the Jeonggaksan Formation, and Beomdori andesite. The Unmunsa...sandstone, andesitic tuff, andesite, skarns of the Jeonggaksan Formation, and the andesite and andesitic tuff |  | | Book (volume) | | Holmquistite—Ferro-holmquistite Cummingtonite—Grunerite Calcic Amphiboles Tremolite—Actinolite—Ferro-actinolite...Hornblendes Edenite—Ferro-edenite Tschermakite—Ferro-tschermakite Pargasite—Ferro-pargasite Magnesio...te Kaersutite—Ferro-kaersutite Joesmithite Sodic-calcic Amphiboles Richterite—Ferro-richterite Barr...Barroisite—Ferro-barroisite Winchite—Ferro-winchite Magnesio-katophorite—Katophorite Magnesio-taramite—Taramite...Amphiboles Glaucophane-Ferro-glaucophane Magnesio-riebeckite—Riebeckite Eckermannite-Ferro-eckermannite Lea |  | | Journal (article/letter/editorial) | | margins of titanian ferro-richterite with 6.650/oTiO, is describedfrom a basaltic andesite. The cores are...hvrnooucrrox In a lava flow of basalt or basaltic andesite near Wild Dog Well, on the Roy Hill (no. SF-12)...than previously known for titanian richterite or ferro-richterite. Mrxnnlrs The rock is a fine-grained...opaque patches of Mg-poor ilmenite and rare ferro-actinolite. The chemical analysis of the rock (Table...Mg, Ca, and Cr, whereasthe margins are titanian ferro-richterite and richer in OH, Ti, Fe, Na, K, and |  | | Journal (article/letter/editorial) | | lower-grade part is chlorite-actinolite-biotite-quartz-plagioclase. Actinolite changes into hornblende near...rocks green colored massive basalt to basaltic andesite with (Tsuchiya and Kanisawa, 1994). The eastern...shale and chert, and an intercalation of basalt to andesite lava layers in the lower part. The uppermost part...DisClinopyroxene tances of the first appearance of biotite, Actinolite Hornblende cordierite and pyralspite-garnet are...chloriteTotal 97.4 99.3 98.0 98.2 97.3 97.5 98.1 actinolite-biotite-quartz-plagioclase is Mineral Bt Bt Pl |  | Koděra, Peter, Kozák, Jaroslav, Brčeková, Jana, Chovan, Martin, Lexa, Jaroslav, Jánošík, Michal, Biroň, Adrián, Uhlík, Peter, Bakos, František (2018) Distribution and composition of gold in porphyry gold systems: example from the Biely Vrch deposit, Slovakia. Mineralium Deposita, 53 (8) 1193-1212 doi:10.1007/s00126-018-0798-0 | Journal (article/letter/editorial) | | Accepted: 20 February 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract The Biely...high-temperature alteration (plagioclase, K-feldspar, actinolite), with gold grades and fineness depending on...1998). The pre-graben stratovolcano stage involved andesite lava flows and pyroclastic breccias in the central...This stage involved eruption of basalt and mafic andesite lava flows and associated hyaloclastite breccias...(Blýskavica Formation), with later differentiated andesite to dacite extrusive domes and associated breccias |  | | Journal (article/letter/editorial) | | compositions and are usually rimmed by secondary ferro–actinolite. Although the pressure/temperature conditions...sedimentary sequences. Various types of dikes of basalt, andesite, quartz diorite, and aplite commonly intrude into...than the basalt (68.5 ± 3.4–70.1 ± 3.5 Ma) and andesite (16.5 ± 0.8–56.2 ± 2.8 Ma) dykes (Kurimoto et...ranging from ferropargasite/ferrohornblende to ferro–actinolite, as shown in Figure 9. The aluminous parts...Nomenclatures follow Leake et al. (1997). Fact, ferro–actinolite; Fed, ferro–edenite; Fhb, ferrohornblende; Fprg |  | Féménias, Olivier, Mercier, Jean-Claude C., Nkono, Collin, Diot, Hervé, Berza, Tudor, Tatu, Mihai, Demaiffe, Daniel (2006) Calcic amphibole growth and compositions in calc-alkaline magmas: Evidence from the Motru Dike Swarm (Southern Carpathians, Romania) American Mineralogist, 91 (1) 73-81 doi:10.2138/am.2006.1869 | Journal (article/letter/editorial) | | Late Pan-African calc-alkaline dike swarm (basalt-andesite-dacite-rhyolite) has been investigated in a region...a complete differentiated series from basaltic andesite to rhyolite (50–72 wt% SiO2). On the basis of...apfu) characteristic of magnesiohornblende and actinolite, with minor tschermakite (TSi < 6.5 apfu). Magnesiohornblendes...compositions of amphibole phenocrysts from andesites. Actinolite is present in numerous lithologies associated...97.13 97.58 Notes: AB = Basaltic andesite; A = Andesite. 1 = actinolite; 2 = kaersutite; 3 = magnesiohastingsite; |  | Lucci, Federico, Della Ventura, Giancarlo, Conte, Alessandra, Nazzari, Manuela, Scarlato, Piergiorgio (2018) Naturally Occurring Asbestos (NOA) in Granitoid Rocks, A Case Study from Sardinia (Italy) Minerals, 8 (10) 442 doi:10.3390/min8100442 | Journal (article/letter/editorial) | | existing regulation on asbestos hazard, i.e., actinolite, tremolite, anthophyllite, crocidolite and amosite...Isadalu complex belong compositionally to the actinolite-tremolite series. They were generated by metasomatic...represents a high-value case study, since the actinolite-bearing felsic rocks outcrop in a strongly anthropized...occurrences in natural environments. Keywords: actinolite; tremolite; asbestos; granite; late variscan...nature of fibrous amphiboles (anthophyllite, actinolite, tremolite, crocidolite and amosite), and chrysotile |  | | Book | | reported zircon SHRIMP U–Pb ages from the basalt and andesite from the upper volcanic formation (Yaziquan Formation)...consisting of two groups of basalt + basaltic andesite (450 Ma) and dacite + lithoidite (440 Ma) association...composed of terrestrial volcanic rocks including andesite, dacite and rhyolite. The available geochemical...main Himalaya thrust fault epidote, ilvaite and actinolite; all are iron rich. In contrast, magnesian iron...are mainly hosted in the limestone and basaltic andesite of the Cambrian-Ordovician Tanjianshan Formation |  | Rice, Clive M., Welch, Mark D., Still, John W., Criddle, Alan J., Stanley, Chris J. (2016) Honeaite, a new gold-thallium-telluride from the Eastern Goldfields, Yilgarn Craton, Western Australia. European Journal of Mineralogy, 28 (5) 979-990 doi:10.1127/ejm/2016/0028-2559 | Journal (article/letter/editorial) | | stratigraphy consists of a metamorphosed sequence of andesite-dominated volcanic and volcaniclastic rocks and...4 5 6 grade decreases to greenschist-facies actinolite-bearing rocks. There is intense ductile deformation...Calc-silicate alteration includes actinolite, epidote, prehnite and titanite. Actinolite of variable Fe content...epidote, cements fractures in epidote, and mantles actinolite (Fig. 4A, B). There are small amounts of chlorite...26 12.18 12.63 0.23 0.08 98.65 Actinolite co un Ferro-actinolite 10.71 – 5.26 0.00 – – 0.03 1.31 |  | Xu, Xing-Wang, Li, Hao, Peters, Stephen G., Qin, Ke-Zhang, Mao, Qian, Wu, Qi, Hong, Tao, Wu, Chu, Liang, Guang-Lin, Zhang, Zhen-Feng, Dong, Lian-Hui (2017) Cu-rich porphyry magmas produced by fractional crystallization of oxidized fertile basaltic magmas (Sangnan, East Junggar, PR China) Ore Geology Reviews, 91. 296-315 doi:10.1016/j.oregeorev.2017.09.020 | Journal (article/letter/editorial) | | excepting for a few replacements of hornblende by actinolite, and biotite by chlorite and/or microcrystalline...magnesiohornblende, and some are altered to actinolite and ferro-actinolite (Supplementary Table 2, Fig. 4b). Zircon...replaced by anhydrite, chlorite and actinolite or ferro-actinolite, respectively. Spongy andesine phenocrysts...is also present along cleavages of actinolite and ferro-actinolite (Fig. 7d) or is associated with hydrothermal...hydrothermal calcite and chlorite. Anhydrite, actinolite and ferro-actinolite alteration was associated with the |  | Ames, D. E., Galley, A. G., Kjarsgaard, I. M., Tardif, N., Taylor, B. E. (2016) Hanging-Wall Vectoring for Buried Volcanogenic Massive Sulfide Deposits, Paleoproterozoic Flin Flon Mining Camp, Manitoba, Canada. Economic Geology, 111 (4) 963-1000 doi:10.2113/econgeo.111.4.963 | Journal (article/letter/editorial) | | chlorite, epidote-clinozoisite, biotite-annite, actinolite-hornblende-ferrotschermakite, and stilpnomelane...Hidden Formation consists of tholeiitic basaltic andesite flows, with subordinate shallowly emplaced Fe-Ti...felsic volcanic rocks Hidden formation Basaltic andesite flows with minor interflow sedimentary rocks 1920...1920 unit and other Fe-Ti-P basaltic andesite (1-5 localities, see text) Flin Flon formation Massive...pillowed, aphyric to plagioclase-phyric basaltic andesite flows (Fig. 5a, b), with characteristic, finely |  | | Journal (article/letter/editorial) | | [NaCa2(Fm4Ti)Si6Al2O23(OH)], and tremolite + ferro-actinolite [Ca2Fm5Si8O22(OH)2, where Fm = Fe+Mn+Mg]....that follow, Fm = FeO+MgO): T-FA = tremolite– ferro-actinolite = Ca2Fm5Si8O22(OH)2; Al-tsch = Ca2(Fm3Al2)Si6Al2O22(OH)2;...solutions of just three components: tremolite + ferro-actinolite [Ca2Fm5Si8O22(OH)2, where Fm = Fe+Mn+Mg],...component like tremolite, to make tremolite–ferro-actinolite, as in Tables 2 and 3. Adding Fe shifts components...J.C., and Boettcher, A.L. (1978) Amphiboles in andesite and basalt: II. Stability as a function of P-T-fH2O-fO2 |  | | Journal (article/letter/editorial) | | amorphous silica. The appearance of garnet and ferro-pargasite, high concentrations of Al2 O3 , HFSEs...individual grains associated with magnetite or minor ferro-pargasite and calcite (Figs. 6e, f and 7d, e). Grunerite...(Cal) (between crossed polarizers). 4.1.4. Ferro-pargasite Ferro-parasite is often intergrown with both grunerite...garnet, some ferro-parasite exists as replacement minerals. Major element analyses for ferro-parasite reveal...reveal that the two-type ferro-parasites (the scattered (I) and replacement minerals (II)) have similar |  | | Journal (article/letter/editorial) | | locally have slightly Al-rich rims. They are mostly ferro-edenite or ferropargasite, and in a tonalite sample...pressure-sensitive and H2O-free reactions. The ferro-edenite- and/or ferropargasite-bearing samples show...N 60 Mt. Kinka 40 Db6 Ambo 35 Basalt and Andesite Db5 Db2 Db4 (Ds) P3 Dumbo (Db) 50 Bt-Hbl...monzonites are relatively homogeneous, and they have ferro-edenite/ ferropargasite compositions (hereafter...Al-poor ferrohornblende/ferro-actinolite (hereafter referred as hornblende/ actinolite). In the monzogranite |  | | Journal (article/letter/editorial) | | minor amounts of quartz, limited quantities of ferro-tremolite and no detectable dolomite. The marbles...generation of amphibole has the composition of ferro-actinolite and is consistent with formation during the...the alteration of the edenitic hornblende to ferro-actinolite or temperatures consistent with the regional...(Ap) inclusion in hornblende (Hb) with secondary actinolite (Act) from the Fe skarn at Chez Larze (sample...collected from LP (Fig. 1) contained coronas of ferro-pargasitic hornblende and plagioclase surrounding |  | | Journal (article/letter/editorial) | | Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, Germany DOI: 10.1127/0077-7757/2012/0215 www.schweizerbart...and shale with plant remains), volcanic (basalt, andesite and trachyandesite) and pyroclastic rocks (tuff...fields: 1 = Actinolite, 2 = Magnesio-Hornblende, 3 = Tschermakite, 4 = Ferro-Actinolite, 5 = Ferro-Hornblende...Ferro-Hornblende, 6 = Ferro-Tschermakite. Symbols as in Fig. 3. but they appear to be homogeneous. Most amphiboles...from the gabbro and from the diorite plot in the actinolite and tremolite fields. Actinolitic hornblende |  | Ciobanu, Cristiana L., Verdugo-Ihl, Max R., Slattery, Ashley, Cook, Nigel J., Ehrig, Kathy, Courtney-Davies, Liam, Wade, Benjamin P. (2019) Silician Magnetite: Si–Fe-Nanoprecipitates and Other Mineral Inclusions in Magnetite from the Olympic Dam Deposit, South Australia. Minerals, 9 (5) 311 doi:10.3390/min9050311 | Journal (article/letter/editorial) | | diverse range of nanomineral inclusions [(ferro)actinolite, diopside and epidote but also U-, W-(Mo)...RX7860 (482 m) 8 x X Ulv Abbreviations: Act—actinolite; Cal—calcite; Carb—carbonates; Chl—chlorite;...andthe magmatic Note domains. Note presence of actinolite (Act), Si-Fe-nanoprecipitates (Si–Mt) and rutile...rutile (Rt) inAl-bearing (d). In (e), presence of actinolite (Act), Si-Fe-nanoprecipitates (Si–Mt) and rutile...overprint by vein fluorite in (a), mottled blebs with actinolite (Act) magnetite displaying banding and overprint |  | Tsygankov, A. A., Udoratina, O. V., Burmakina, G. N., Antsiferova, T. N., Coble, M. A. (2016) The Early Paleozoic basite magmatism of Western Transbaikalia: Composition, isotope age (U-Pb, SHRIMP RG), magma sources, and geodynamics. Petrology, 24 (4) 367-391 doi:10.1134/s086959111604007x | Journal (article/letter/editorial) | | sequence is dominated by rhyolite, dacite, and andesite tuff. Subvolcanic bodies are rep resented by...Vendian–Early Cambrian carbonate–terrigenous rocks and andesite–dacite–rhyolite volcanic rocks (Klimuk and Sitnikova...clinopyroxene (salite), amphibole (magnesian hornblende, actinolite), and biotite. The average total content of mafic... 6). In addition, the rocks contain abundant actinolite–tremolite amphiboles developed after clinopyroxene... rro ite Fe berg en Eulite Ferrohypersthene Ferro silite 50 (b) XCa Diopside Hedenbergite Ferrosalite |  | Fortey, N. J., Cooper, A. H., Henney, P. J., Colman, T., Nancarrow, P. H. A. (1994) Appinitic intrusions in the English Lake District. Mineralogy and Petrology, 51 (2) 355-375 doi:10.1007/bf01159737 | Journal (article/letter/editorial) | | which may have been feeders to contemporaneous andesite plateau lavas (Groome and Hall, 1974). In the...Ma (Caradoc) for microdiorite from Close House Quarry, Embleton, and 468 -t- 10 Ma for the Carrock Fell...ferri-subcalcic magnesio-hornblende, and green ferro-actinolite respectively in sample CU142 (Scawgill Bridge...magnesio-hornblende and bright green manganoan ferrian actinolite respectively in sample LC268 (Hope Beck microdiorite)...hornblende, itself partly replaced by pale green actinolite. EPMA data for amphiboles from Scawgill Bridge |  | Lawrence, D.M., Allibone, A.H., Chang, Z., Meffre, S., Lambert-Smith, J.S., Treloar, P.J. (2017) The Tongon Au Deposit, Northern Côte d’Ivoire: An Example of Paleoproterozoic Au Skarn Mineralization☼. Economic Geology, 112 (7) 1571-1593 doi:10.5382/econgeo.2017.4522 | Journal (article/letter/editorial) | | 1, early/distal potassic (biotite-K-feldspar-actinolite) metasomatism; stage 2, prograde clinopyroxene...different scale. Abbreviations: Ab = albite, Act = actinolite, Ank = ankerite, Cc = calcite, Czo = clinozoisite...biotite and lesser amounts of K-feldspar and minor actinolite and ilmenite. Biotite replaced primary augite...unaltered basaltic-andesitic tuffs show pronounced actinolite reaction rims through replacement of primary...Figure 4G. Scale bar = 2 cm. Abbreviations: Act = actinolite, Bt = biotite, Chl = chlorite, Di = diopside |  | | Report (volume) | | occurrence and structures of proto-ferro-anthophyllite and proto-mangano-ferro-anthophyllite, but in both these...Mineral 68:924-943 Castelli D (1988) Chlorpotassium ferro-pargasite from Sesia-Lanzo marbles (Western Italian...(1998) Fe-Mg order-disorder in tremolite–actinolite–ferro-actinolite at ambient and high temperature. Am Mineral...Ottolini L, Grice JD, Czamanske GK (1996c) Fluor-ferro-leakeite, Na Na2 (Fe22+Fe32+Li) Si8 O22 F2, a new...new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite |
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