lacustrine deposits 中文意思是什麼

lacustrine deposits 解釋
湖沉積
  • lacustrine : adj. 1. 湖泊的。2. 生活[棲息]在湖上[中]的。3. 【地質學；地理學】湖中形成的。
  • deposits : 沉著物
  1. The elementary idea of the reference units method can be described as follows : firstly, by the setting of double series of reference units, we can control the highest and lowest land quality class of each village or town ; secondly, the class of the arable land will be get through the contrast between the arable land with the reference unit which has been selected in the same area, the difference in quality is the key factor to classify the land. the results show, 87. 6 % of the lands from i to iii distribute on alluvial and lacustrine plains, where the associated soils are mainly grey fulvo - aquic and calcareous concretions black ones. and 61. 4 % of them from iv to vi distribute on slightly rolling parts with mainly yellow - cinnamon soil developed from the diluvial and slope deposits

    分等結果表明：臥龍區等的耕地中，有87 . 6分佈在沖積、湖積平原區，主要土壤類型是在河流沖積物上發育形成的灰潮土、在湖相沉積物上發育形成的砂姜黑土；等耕地中，有61 . 4分佈在壟崗區，主要土壤類型是洪坡積物上發育形成的黃褐土：而、等耕地集中分佈在丘陵區，主要土壤類型是殘坡積物上發育形成的粗骨性黃褐土，等別結果分佈總體上體現了不同地貌類型、土壤條件下耕地質量的差異。
  2. Hydrogeological feature as well as development and utilization of phreatic water in alluvial - lacustrine deposits of ding bian - jingbian plain, northern shanxi province

    陜北定靖平原沖湖積層潛水水文地質特徵及開發利用
  3. For the high - class highways builded on the area of lacustrine deposits soft soil, because earth fill of subgrade is very high and construction period is very short, the controlling of subgrade stability and settlement are the two key techniques

    對于通過湖相沉積軟土地區的高等級公路，當路基填土較高、工期較短時，必須解決地基穩定性控制及沉降控制兩個關鍵技術問題。
  4. Studies of the petrology, textures and structures, depositional environment, contained fossils and age of the fluvial - lacustrine deposits indicate that they are the earliest record of the epiglacial area of the quaternary glacial period, representing the lower boundary of the quaternary glacial period

    對該河湖相沉積的巖石、結構構造、沉積環境、所含化石特徵和形成時代等的研究表明，它是第四紀冰期冰緣區的最早沉積記錄，也是第四紀冰期的下限。
  5. Based on the treatment engineering of 26 kilometers lacustrine deposits soft soil foundation in han - sha sect of yi - huang freeway, the paper, through the means of centrifugal model test and field observation, establishes mathematical analysis model, completely and detailedly researches and analyses the stability of lacustrine deposits soft soil foundation and the rule of settlement, guides the large - scale construction of yi - huang freeway 26 kilometers soft foundation treatment, educes the settlement characteristic and the rule of lacustrine deposits soft soil subgrade, summarizes the scientific measure of effectively controlling the stability and settlement of such kind of foundation

    本文以宜黃高速公路漢沙段中的26公里湖相沉積軟土地基的處理工程為依託，通過採用離心模型試驗與現場原位監測相結合的手段，建立數學分析模型，對湖相沉積軟土地基的穩定性及沉降規律進行了全面、細致的研究與分析，指導了宜黃高速公路26公里軟基處理的大規模施工，得出了湖相沉積軟土地基路堤沉降特性及規律，提出了有效控制此類地基穩定性及沉降的科學措施。
  6. This result lays a solid foundation for the research. 2. based on the study of petrology facies, facies association and sedimentary sequences, the sedimentary processes and systems are established. they consist of debris and hyper concentration flow deposits, channel deposit of braided and meandering streams, and alluvial fans, floodplains, fan - deltas and lacustrine turbidities

    根據巖相、相組合以及沉積層序的研究，確立了研究區的沉積作用類型和沉積體系，它們包括碎屑流和超濃縮洪流沉積、辮狀河河道沉積，以及沖積扇沉積、洪泛平原沉積、扇三角洲沉積和湖相濁流沉積。
  7. Accordingly, the dune deposits of the section since 150 ka bp can be divided into 38 alternate evolvement processes of desert and inter - desert periods, which accord with the sedimentary cycles of the section. it is further suggested from now climate in the area that the 38 inter - succession processes of dune deposits and fluvio - lacustrine or palaeosols in past 150 ka actually result from the alternate evolvement of the ancient east asia winter and summer monsoons in the mu us desert during the long geologic times

    從這一認識出發，將米浪溝灣剖面150ka以來的砂丘堆積劃分為38個旋迴的沙漠期與間沙漠期交替演化過程，並認為，該剖面自那時以來發生的38個砂丘沉積與河湖相或古土壤的演替過程，實際上是這一長期地質時代毛烏素沙漠受東亞冬夏古代季風影響交替演化所致。
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