(Table T6) Stratigraphic occurence and relative abundances of diatom taxa fro...
收藏B2FIND2026-03-19 收录
官方服务:
资源简介:
Abundance: D = dominant >60%, A = abundant 30-60, C = common 15-30, F = few 3-15, R = rare <3, T = trace, X = present, - = none. Preservation: G = good, M = moderate, P =...
丰度分级:D代表优势(dominant)类群(占比>60%),A代表丰富(abundant)类群(占比30%~60%),C代表常见(common)类群(占比15%~30%),F代表稀少(few)类群(占比3%~15%),R代表稀有(rare)类群(占比<3%),T代表微量(trace),X代表存在(present),-代表无(none)。保存状态分级:G代表良好(good)保存,M代表中等(moderate)保存,P代表……



