stratigraphical profile 中文意思是什麼
stratigraphical profile
解釋
地層縱斷面- stratigraphical : adj. 【地質學；地理學】地層學的。adv. -cally
- profile : n 1 剖面，半面，（雕像等的）側面；側面像。2 外形，輪廓；外觀，形象；型；【航空】翼型，翼（剖）面...
-
2. by the analysis of grain - size accumulative centigrade content, grain - size composition and grain - size parameters performed on samples in baijiaziu profile and mafangtan profile, nine stages of hydrological and climatic changes since the last 1300 years have been distinguished. the first, the third, the fifth, the seventh and the ninth layers of the stratigraphical sequence are finer while the second, the fourth, the sixth and the eighth are coarser
據此，將白家嘴剖面劃分為9個地層單位， 4個沉積旋迴，其中剖面1 、 3 、 5 、 7 、 9層較細， 2 、 4 、 6 、 8層較粗，並認為此沉積序列表明近1 . 3ka以來渭河古水文與古氣候大致經歷了9個變化階段。
分享友人