正長花崗岩 - 维基百科，自由的百科全书
正長花崗岩（英語： Syenogranite ）是一種細到粗粒的侵入性火成岩，其一般成分與花崗岩相同。 但不同於 長石 的特徵。 正長花崗岩的長石成分主要呈鹼性（通常為 正長石 ）。
Syenogranite: Mineral information, data and localities. - mindat.org
Look for Syenogranite on Google. Look for Syenogranite images on Google. Quick Nav. A granitoid (a coarse grained igneous rock composed of mostly quartz, plus Kspar (alkali-feldspar) and plagioclase), with plagioclase < Kspar.
部分火成岩相关术语翻译 - 哔哩哔哩
2021年5月29日 · 部分火成岩相关术语翻译. syenogranite 正长花岗岩，syeno 来自 syenite（正长岩），翻译成 “钾长花岗岩” 是不合适的 [1] 。. 正长花岗岩是根据花岗岩成分来命名的，即QAPF图解（如下图），每一个端元的矿物含量可用Geokit快速算出。. 花岗岩其他的分类名称详见 ...
正长花岗岩 - 维基百科，自由的百科全书
正长花岗岩 （英语： Syenogranite）是一种细到粗粒的侵入性 火成岩，其一般成分与 花岗岩 相同。 但不同于 长石 的特征。 正长花岗岩的长石成分主要呈碱性（通常为 正长石）。 例如，爱达荷州鲑鱼山的正长花岗岩呈粉红色至棕褐色，由45-55%碱长石、15-20% 斜长石 、15-20% 石英 、5-8% 黑云母 、3-5% 角闪石 和少量 磁铁矿 所组成 [1]。 正长花岗岩与 正长岩 相似，但主要区别在于它的石英含量较高（15-25%），碱长石较低 (45-50%) ，黑云母比角闪石多，并且具有 白 …
Syenogranite - Wikiwand
Syenogranite is a fine to coarse grained intrusive igneous rock of the same general composition as granite. They are characteristically felsic.
Syenogranite – Knowledge and References – Taylor & Francis
Syenogranite is a type of granite that is commonly found in tin-bearing magmas and has a composition that ranges from monzo- to syenogranite. From: A unifying model for tin mineralisation in granites–pegmatites–greisens and veins: an African perspective [2019]
Medium-Grained Monzogranite-Syenogranites | SpringerLink
2022年8月24日 · The medium-grained monzogranite-syenogranites are the subordinate granitoids in the K-rich granitoid belt and display intrusive relationships with the porphyritic MQGM gneisses. In this chapter, comprehensive geological, petrological, whole-rock geochemical, and...
Zircon ages and geochemistry of late Neoarchean syenogranites …
2012年12月1日 · Syenogranites are widely distributed in Anshan-Benxi, Qinhuangdao and western Shandong, and also occur in southern Jilin, northern Liaoning, northwestern Hebei and central Henan. Based on geological relationships, degree of metamorphism, deformation and magmatic zircon ages, two phases of syenogranite magmatism are recognized.
Petrogenesis and tectonic implication of the Middle Triassic …
2024年4月1日 · Monzogranite, syenogranite, gabbroic diorite, and granodiorite intrusions are emplaced from north to south, exhibiting an intrusive contact with the Mesoproterozoic Xiaomiao Group (Fig. 1 d). The primary occurrence of pegmatite is found within the gabbroic diorite, exhibiting a sharp contact boundary (Fig. 2 a–b).
Syntectonic emplacement of the Triassic biotite-syenogranite intrusions ...
2017年5月15日 · In this paper, we present results of a systematic study on the syntectonic emplacement of the Triassic biotite-syenogranite intrusions from the Taili area, in order to grasp the main aims, that are: (1) to reveal the petrogenesis of the biotite-syenogranite and their rheological behavior, (2) to constrain characteristics and timing of initial ...
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