 | | Journal (article/letter/editorial) | | method at the same laboratory are reported in La Flèche, Camiré, and Jenner (1998). 424 ROCKS & MINERALS...earthy red hematite. Microcline (Pseudomorph Orthoclase), (K,Na)AlSi3O8 Microcline occurs frequently...twinning is monoclinic and characteristic of orthoclase. However, careful observation of various (001)...mineral symmetry has changed from monoclinic (orthoclase) to triclinic (microcline) during cooling (i...conclude that the microcline is a pseudomorph of orthoclase. Chemically, this K-feldspar is not pure microcline |  | Çoban, Hakan, Topuz, Gültekin, Roden, Michael F., Hoang, Nguyen, Schwarz, Winfried H. (2019) 40Ar-39Ar dating and petrology of monzonite ejecta in tephra from Quaternary Gölcük volcano (Isparta, SW Turkey): tear-related contrasting metasomatic symptoms in extensional mantle-derived magmas. Lithos, 330. 160-176 doi:10.1016/j.lithos.2019.02.006 | Journal (article/letter/editorial) | | Th. Moreover, variable (Hf/Sm)N MA and low (Ta/La)N ratios reflect subduction-related metasomatism...standard=0.710250 and 143 Nd/144 Nd ratios to the La Jolla Nd standard=0.511860. The uncertainty in concentration...511860 for the La Jolla standard. During the period of work the weighted average of five La Jolla Ndstandard...albite-richer rims (Figs. 2g-l and 3a). K-feldspar (orthoclase-anorthoclase) is characterized by wide compositional...earth element patterns with relatively high EP T (La/Yb)N values (32-133) and hardly discernible negative |  | Chen, Yue, Zhu, Di-Cheng, Zhao, Zhi-Dan, Meng, Fan-Yi, Wang, Qing, Santosh, M., Wang, Li-Quan, Dong, Guo-Chen, Mo, Xuan-Xue (2014) Slab breakoff triggered ca. 113Ma magmatism around Xainza area of the Lhasa Terrane, Tibet. Gondwana Research, 26 (2) 449-463 doi:10.1016/j.gr.2013.06.005 | Journal (article/letter/editorial) | | respectively. The average 143Nd/144Nd ratio of the La Jolla standard measured during the sample runs is...circles indicate the locations of SHRIMP dating and LA-MC-MS Hf analyses, respectively. With the exception...(Fig. 4b), enriched in LREE and depleted in HREE ((La/Yb)N = 2.5–3.6) with slightly negative Eu anomalies...(44) value, as well as more fractioned REE pattern ((La/Yb)N = 6.1), suggesting that it experienced high...d), the andesite samples show enrichment in LREE [(La/Yb)N = 7.9–8.1] and LILE and (b) High-K calc-alkaline |  | Pandey, Ashutosh, Chalapathi Rao, N.V., Chakrabarti, Ramananda, Pankaj, Praveer, Pandit, Dinesh, Pandey, Rohit, Sahoo, Samarendra (2018) Post-collisional calc-alkaline lamprophyres from the Kadiri greenstone belt: Evidence for the Neoarchean convergence-related evolution of the Eastern Dharwar Craton and its schist belts. Lithos, 320. 105-117 doi:10.1016/j.lithos.2018.09.005 | Journal (article/letter/editorial) | | calc-alkaline lamprophyres. Higher Ba/Nb and low Nb/La points to their derivation from an enriched lithospheric...Rb/Sr along with positive correlation between K/La and Rb/La reveals presence of metasomatic phlogopite in...rhyolite sample while Dey et al. (2014) obtained LA-ICP-MS U-Pb zircon ages of 2558±18 Ma, M 2523±39...(Ca), peridot (Mg), SrSO 4 (Sr), M FeS2 (Fe), orthoclase (K), rutile (Ti), NaCl (Na), apatite (P), CaSiO...labradorite. Predominance of plagioclase over orthoclase classifies these lamprophyres as spessartite |  | Tang, Gong-Jian, Wang, Qiang, Wyman, Derek A., Li, Zheng-Xiang, Zhao, Zhen-Hua, Yang, Yue-Heng (2012) Late Carboniferous high εNd(t)–εHf(t) granitoids, enclaves and dikes in western Junggar, NW China: Ridge-subduction-related magmatism and crustal growth. Lithos, 140. 86-102 doi:10.1016/j.lithos.2012.01.025 | Journal (article/letter/editorial) | | Clinopyroxene 0.1 1 La Ce Pr Nd 0.01 Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Ba Th Rb Nb U Ce La Pb Sr Sm Gd...granites are characterized by a variation in orthoclase and albite contents ranging from Or78 to Or91... 0.38 207Pb/235U Fig. 6. Concordia diagrams of LA-ICPMS (a–c) and SHRIMP (d) zircon U–Pb analyses for...are enriched in LREEs relative to heavy REEs with (La/Yb)N ratios of 4.6–7.3, whereas, the granite porphyry...monzonitic enclave have unfractionated REE with (La/Yb)N ratios of 1.0 and 1.1. All of these rock types |  | Lan, Ting-Guang, Fan, Hong-Rui, Hu, Fang-Fang, Tomkins, Andrew G., Yang, Kui-Feng, Liu, Yongsheng (2011) Multiple crust–mantle interactions for the destruction of the North China Craton: Geochemical and Sr–Nd–Pb–Hf isotopic evidence from the Longbaoshan alkaline complex. Lithos, 122 (1) 87-106 doi:10.1016/j.lithos.2010.12.001 | Journal (article/letter/editorial) | | phenocrysts (2.3– 4.3 mm, b1 vol.%) are mainly columnar orthoclase. Matrix feldspar (0.1–0.5 mm, 99 vol.%) is mainly...mainly subhedral–anhedral plagioclase and orthoclase. Few anhedral quartz and magnetite grains are present...phases according to size. The euhedral– subhedral orthoclase phenocrysts (1.5–9.0 mm, 25 vol.%) are typically...feldspar crystals (~0.1 mm), are mainly intergrown orthoclase and albite, and occur as a matrix phase (10–15...matrix feldspars (65 vol.%), are mainly intergrown orthoclase and albite (0.5–0.1 mm). Anhedral aegirine–augite |  | | Journal (article/letter/editorial) | | zircon. Alkali-feldspar occurs as orthoclase or perthitic orthoclase (Qr92~96Ab5~8 ) that commonly form...chondrite-normalized rare earth element (REE) patterns, with (La/ Yb)N rat ios of 15–18 and minor negative Eu ano...samples display weak concave-upward REE patterns, with (La/Sm)N of 5.0– 12 ACCEPTED MANUSCRIPT 6.7 and (Ho/Lu)N...moderate enrich ment of LREEs over HREEs , with (La/ Yb)N of 6–12 and negative Eu NU anomalies (δ Eu...et al., 2014). On the other hand, the elevated Ba/La, Sr/Th and moderate (Hf/Sm)N PT ratios in the Alatate |  | Wu, Song, Zheng, You-Ye, Sun, Xiang, Liu, Sheng-Ao, Geng, Rui-Rui, You, Zhi-Ming, Ouyang, Hai-Tao, Lei, Dong, Zhao, Zhong-Ying (2014) Origin of the Miocene porphyries and their mafic microgranular enclaves from Dabu porphyry Cu–Mo deposit, southern Tibet: implications for magma mixing/mingling and mineralization. International Geology Review, 56 (5) 571-595 doi:10.1080/00206814.2014.880074 | Journal (article/letter/editorial) | | source region. The HMPs have high Sr/Y (88.2–135.7), La/Yb (25.0–31.9) ratios, and moderate Mg# (46.2–49...indicate the locations of SHRIMP U–Pb analyses and LA–ICP–MS Hf analyses, respectively. SHRIMP U–Pb ages...by relative enrichment of light REEs, with high (La/Yb)N ratios (17.9–22.9) and without Eu anomalies...A/CNK Mg# Be Sc V Cr Co Ni Zn Ga Rb Sr Y Zr Nb Cs Ba La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Sample Table 3. ...Al2O3/(CaO+Na2O+K2O). Eu/Eu* = EuN/((SmN+GdN)/2); (La/Yb)N is chondrite-normalized ratio. Tm Yb Lu Hf |  | Chu, Xiaolei, Sun, Jinggui, Sun, Fanting, Mei, Yanxiong, Liu, Yang, Men, Lanjing, Zhao, Keqiang, Zhang, Xiaotian (2021) Petrogenesis of the Early Cretaceous Hongshan Complex in the Southern Taihang Mountains: Constraints from Element Geochemistry, Zircon U-Pb Geochronology and Hf Isotopes. Minerals, 11 (10) 1111 doi:10.3390/min11101111 | Journal (article/letter/editorial) | | whole-rock geochemical data from the Hongshan complex. LA–ICP-MS zircon U–Pb age from the fine-grained biotite...assemblage with sizes of 0.3–0.8 mm consists of orthoclase (60–65%), aegirine pyroxene (13–15%), biotite...magnetite, apatite, and zircon. The majority of orthoclase crystals are either subhedral or granular. The...are interstitial between and surrounded by the orthoclase minerals. In addition, the several aegirine pyroxenes...rock-forming minerals with sizes of 1–3 mm are orthoclase (75–80%) and aegirine pyroxene (15–20%) with |  | Sokół, Krzysztof, Halama, Ralf, Meliksetian, Khachatur, Savov, Ivan P., Navasardyan, Gevorg, Sudo, Masafumi (2018) Alkaline magmas in zones of continental convergence: The Tezhsar volcano-intrusive ring complex, Armenia. Lithos, 320. 172-191 doi:10.1016/j.lithos.2018.08.028 | Journal (article/letter/editorial) | | element enrichment and strong fractionation of REEs (La N/YbN up to 70) indicate a relatively enriched magma...to leucite breakdown into NU nepheline and orthoclase, and “epileucites” describing pseudomorphism...pseudomorphism after leucite composed of agglomerated orthoclase, muscovite, analcime, chlorite, calcite and zeolites...the SYU, we used the classification diagram of De La Roche et al. (1980; Fig. 5b). Whole rock geochemical...a strong fractionation between LREE and HREE with La (N)/Yb(N) ratios predominantly around 10-40 AC |  | Yang, Ze-Yu, Li, Shan-Shan, An, Mao-Guo, Zhi, Cheng-Long, Shang, Zhen, Long, Zheng-Yu, Geng, Jian-Zhen, Yu, Hao-Cheng, Qiu, Kun-Feng (2022) Petrogenesis of Alkaline Complex of the Longbaoshan Rare Earth Element Deposit in the Luxi Block, North China Craton, China. Minerals, 12 (12) 1524 doi:10.3390/min12121524 | Journal (article/letter/editorial) | | and zircon during its evolution. The variable La content, La/Sm, Rb/Sr and (Ta/Th) N ratios indicate that...an area of ca. 2.5 km2 in the southeast3.1. Sphene LA‑ICP‑MS U‑Pb Dating and REE Composition Analysis ern...the south section of Yishu Fault Zone and southeast LA‑ICP‑MS U‑Pb analyses were conducted at the Isotopic...the mass dispersion to 17%. The instru‑ 3.1. Sphene LA-ICP-MS Datingwith and9REE Composition Analysis ment...Faraday cups are configuredTianon both sides Sphene LA-ICP-MS U-Pb analyses were conducted at the Isotopic |  | | Journal (article/letter/editorial) | | Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre de Paris, ISTeP UMR 7193, F- NU 75005 Paris...using diopside (Ca, Mg, Si), MnTiO3 (Mn, Ti), orthoclase PT E (K, Al), Fe2O3 (Fe), albite (Na) and Cr2O3...ilmenite are observed in almost all samples. Orthoclase has been found in samples on the south end of...PT E Feldspars mainly consist of plagioclase, orthoclase (or adularia) and albite (Fig. 9d). Extensive...anorthite content in the range 17-30%. Albite, orthoclase and adularia are found in samples from the low-grade |  | | Journal (article/letter/editorial) | | Zircon IP U–Pb age dating was performed using a LA-ICP-MS instrument at the Tianjin CR Center, China...enrichment in light rare earth elements (LREE) with (La/Yb)N of AN lamprophyres, dolerites and felsic dykes...fall in the M Na-orthoclase and orthoclase fields in anorthite-albite-orthoclase diagram ED (Supplementary...(0.76-0.88 ppm) with high Sr/Y ratios (45-111) and La/Yb ratios (55-63) (Defant and Drummond, 1990; Moyen...Defant and Drummond (1990) that the high Sr/Y and La/Yb features of adakites are related to the partial |  | Tang, Huayun, Zheng, Jianping, Yu, Chunmei, Ping, Xianquan, Ren, Hongwei (2014) Multistage crust–mantle interactions during the destruction of the North China Craton: Age and composition of the Early Cretaceous intrusions in the Jiaodong Peninsula. Lithos, 190. 52-70 doi:10.1016/j.lithos.2013.12.002 | Journal (article/letter/editorial) | | Alkaline feldspar (0.4–1.5 mm) is mainly subhedral orthoclase (Fig. 3b). Pyroxenes are dominantly hypersthene...quartz and hornblende. The matrix K-feldspar is orthoclase and perthite. Plagioclase (3–5 mm) shows polysynthetic...analyses on zircons were conducted synchronously by LA–ICP-MS. Detailed operating conditions for the laser...P2O5 LOI Total Mg# Sc V Cr Co Ni Rb Sr Zr Nb Ba Y La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta Pb Th...of the NBS 987 standard and the 143Nd/144Nd of the La Jolla standard are 0.710331 ± 5 (2σ) and 0.511844 |  | Zhang, Xiaohui, Mao, Qian, Zhang, Hongfu, Zhai, Mingguo, Yang, Yueheng, Hu, Zhaochu (2011) Mafic and felsic magma interaction during the construction of high-K calc-alkaline plutons within a metacratonic passive margin: The Early Permian Guyang batholith from the northern North China Craton. Lithos, 125 (1) 569-591 doi:10.1016/j.lithos.2011.03.008 | Journal (article/letter/editorial) | | with high Sr–Ba abundances and elevated Sr/Y and La/Yb ratios. Such high-silica adakitic affinity, plus...during sample preparation. Individual analyses by both LA– ICPMS and SIMS are reported with 1σ uncertainties...interlocking framework with interstitial perthitic orthoclase (Or88–94Ab7–11An0–2). Leuconorites are fine-to...Supplemental Table 2), subhedral to anhedral perthitic orthoclase (Qr90–97Ab3–7), green magnesiohornblende with...allanite. K-feldspar mainly occurs as perthitic orthoclase (Qr89–96Ab4–11) with large subhedral to anhedral |  | Yang, T.N., Chen, J.L., Liang, M.J., Xin, D., Aghazadeh, M., Hou, Z.Q., Zhang, H.R. (2018) Two plutonic complexes of the Sanandaj-Sirjan magmatic-metamorphic belt record Jurassic to Early Cretaceous subduction of an old Neotethys beneath the Iran microplate. Gondwana Research, 62. 246-268 doi:10.1016/j.gr.2018.03.016 | Journal (article/letter/editorial) | | southern segments, respectively, of the SSMB. Careful LA-ICP-MS U/Pb analyses of the magmatic zircons from...photography and cathodoluminescence (CL) imaging. For LA–ICPMS U–Pb analysis, zircons from 17 samples were...laser–ablation inductively–coupled–plasma mass spectrometer (LA–ICP–MS) determination of U–Pb age was conducted at...quantitative calibrations for U–Pb isotope data used for LA-ICP-MS are similar to those described by Liu et al...time period. All RI analytical data obtained by LA–ICP–MS are listed in Supplementary Table 3. In situ |  | Mohebi, Aida, Sepidbar, Fatemeh, Mirnejad, Hassan, Behzadi, Mehrdad (2020) Molybdenite Re–Os dating, petrology, and geochemistry of granitoids in the Bondar Hanza porphyry Cu deposit (
Urumieh‐Dokhtar
magmatic arc), Iran: Insight into petrogenesis, mineralization, and tectonic setting. Geological Journal, 55 (11). 7499-7516 doi:10.1002/gj.3874 | Journal (article/letter/editorial) | | exposed over an area of about 2 km2 quartz, orthoclase, and altered ferromagnesian minerals. Plagioclase...(Figure 6g). The argillic plasma–mass spectrometer (LA–ICP–MS) with Resonetics S-155-LR alteration is composed...with dual external rotary pumps. The laser ablation (LA) instrument has a two-volume low-volume Laurin Technic...Cs Cu Dy Eu Er Fe Ga Ge Gd Hf Ho In K La Li Lu Mn Mo Na Nb Nd Ni P 3.58 Na2O LOI...in pyrite (5.0–6.5 ‰), chalcopyrite (5.3–6.8 ‰), La/Sm (7.3–10.6) and Sm/Yb (2.3–6.6) ratios similar |  | Pahari, Arijit, Tang, Li, Manikyamba, C., Santosh, M., Subramanyam, K.S.V., Ganguly, Sohini (2019) Meso-Neoarchean magmatism and episodic crustal growth in the Kudremukh-Agumbe granite-greenstone belt, western Dharwar Craton, India. Precambrian Research, 323. 16-54 doi:10.1016/j.precamres.2019.01.005 | Journal (article/letter/editorial) | | Craton. TTGs exhibit fractionated REE patterns [(La/Yb)N= 11.8-50.3; (Gd/Yb)N=2.1-4.9] whereas the granites...plagioclase (An15-30~55%), quartz (~25%) with minor orthoclase feldspar (<15%) and biotite (~5%) along with...coarse grained, inequigranular with subhedral orthoclase, anhedral quartz and plagioclase. The microcline...irregular veins and patches of sodic plagioclase in orthoclase feldspar (Fig 3F). The worm-like intergrowths...of normative anorthite (An), albite (Ab) and orthoclase (Or) compositions the TTGs occupy the trondhjemite |  | De Souza, Stéphane, Dubé, Benoît, Mercier-Langevin, Patrick, McNicoll, Vicki, Dupuis, Céline, Kjarsgaard, Ingrid (2019) Hydrothermal Alteration Mineralogy and Geochemistry of the Archean World-Class Canadian Malartic Disseminated-Stockwork Gold Deposit, Southern Abitibi Greenstone Belt, Quebec, Canada. Economic Geology, 114 (6) 1057-1094 doi:10.5382/econgeo.4674 | Journal (article/letter/editorial) | | Kjarsgaard3 1 Geological Survey of Canada, 490 rue de la Couronne, Quebec, Quebec G1K 9A9, Canada 2 Geological...ca *Current address: Département des sciences de la Terre et de l’atmosphère, Université du Québec à...(ICP-MS) for Rb, Cs, Ta, Nb, Hf, Zr, Y, Sn, W, Ag, La, Ce, Yb, and Lu. Co, Cr, Cu, Ni, Mo, Pb, and Zn were...Y Cr Ni Co Sc V Cu Pb Zn Bi Sn W Mo B Ag Au As Sb La Ce Yb Lu Te Se 550 77 418 2.90 0.42 4.40 3.30 136...monzodiorite shows a porphyritic texture with perthitic orthoclase phenocrysts (0.2–1 cm) and a phaneritic groundmass |  | | Book | | C. MARTfNEZ-Rurz Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR) Facu1tad de Ciencias Campus Fuentenueva...C. Martínez-Ruiz Instituto Andaluz de Ciencias de la Tierra CSIC-University of Granada Spain (fmruiz@ugr...koeberl@univie.ac.at) 2 Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Facultad de Ciencias, Campus Fuentenueva...the F-F boundary (e.g., Wang 1992) and also in Belgium (e.g., Claeys et al. 1992; Claeys and Casier 1994)...possible that the spherule layers in China and in Belgium do not belong to precisely the same layer, as conodont |
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