alteration zone 中文意思是什麼

alteration zone 解釋
蝕變帶
  • alteration : n. 1. 變更，改變，變化。2. 【地質學；地理學】蝕變。3. 〈美方〉閹割。
  • zone : n 1 【地理】（地）帶。2 區域，范圍，界。3 〈古、詩〉（腰）帶。4 圈，環帶。5 【數學】（球面）帶；...
  1. Spray-zone diagenesis or seepage is another variant on hypersaline brine alteration of contemporaneous carbonates.

    浪花帶的成巖作用或滲濾作用是影響同生碇酸鹽的起鹽囪水變化的另一個因素。
  2. K - ar age of an illite from alteration rock in the contact zone around lianhuashan porphyry is 38. 6ma. with referencing to the main metallogenic period of yulong copper metallogenic zone and of ailaoshan gold metallogenic zone, it is suggested that the time of formation of deposits in the district studied is probably in a period of time from 38. 6ma at earliest to 20ma at latest. this time is equivalent to the origination time of two important tectonic events, i. e., lanping movement and the turning point when ailaoshan - red river fault turned from sinisteral into dextral

    獲得了蓮花山巖體周圍接觸帶蝕變巖中伊利石k - ar年齡38 . 6ma ，參考玉龍銅礦帶和哀牢山金礦帶的主要成礦期（分別為30ma左右及26ma ） ，釐定本礦集區成礦年齡下限為38 . 6ma ，上限為20ma ，與兩次重要的構造事件?蘭坪運動的起始時間及哀牢山?紅河斷裂由左旋轉為右旋的時間相當。
  3. Past investigation found the rock in the right dam foundation composing of granite ( _ 4 ~ 3 _ 5 ~ 1 ) in dyas - trias, which has a very complicated mechanical environment. the complicated phenomenon is as follows : tectonism, alteration, rock mass demobilize, rock mass stress release and other factors. because of this several weakness rock zones and a loosen rock mass zone are develop in the right dam foundation

    前期的調查表明其右岸巖體力學環境復雜，表現為：構成右岸壩基（肩）巖體主體的二迭三迭紀花崗巖（ _ 4 ~ 3 _ 5 ~ 1 ）受構造變動、蝕變、風化卸荷等因素的影響形成了壩基軟弱巖帶和壩肩上部卸荷鬆弛巖體。
  4. Abstract : 145 samples of eight plants were collected from lanmuchang and yangjiawan and quantitative analyses were made of the ore - forming elements in the plant ashes. considering the three principles of the plant indicator for mineral exploration, namely certainty, sensitivity and feasibility, this paper evaluates comprehensively the indicating functions of the eight plants, on the basis of some quantitative indexes such as the relation coefficient between plant ash and ore - forming element, concentration coefficient, etc. it also discusses the relationships between the anomaly of plant ashes and the fault zone, alteration zone mineralization zone and orebody, showing the significance of these plants to the prospecting

    文摘:在濫木廠和楊家灣鉈（汞）礦床（點）對芒箕、南燭、榔榆、大金發蘚、蜈蚣草、石松、黃花草、醉魚草等8種植物取樣145件，在提出確定找礦有效指示植物三原則（確定性，敏感性，可行性）的基礎上，依據植物灰分與底質成礦元素相關系數、植物灰分富集系數和襯度系數，較全面地分析和評價了8種植物的找礦功能；討論了其異常的分佈與斷裂帶、蝕變帶、礦化帶以及工業礦化（礦體）之間的關系，並指出了其找礦意義。
  5. ( 2 ) testing and simulating on the tress field indicates that original stress distributing rule and collective character could be compartmentalized two parts : alteration zone in the surface near sloping and stress calm zone in deep

    （ 2 ）地應力場測試和模擬研究表明，隧道通過部位初始應力分佈規律的總體特徵可劃分為近坡面淺表生改造帶和深部應力平穩帶。
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