Table 1 Summary of the characteristics and diatom assemblages of the sorting regions and composite regions
Description of particle groups | Sorting regions/composite regions | Obtained diatom assemblage |
|---|---|---|
Moderate-FSC | R1/R9/R17 | Abundant discoid diatoms (Thalassiosira) |
Low-FSC | R2/R10/R18 | Abundant pennate diatoms (Fragilariopsis, Thalassiothrix etc.) |
High-SSC | R3/R11/R19 | Abundant Rhizosolenia (interglacial samples) or Eucampia (glacial samples) |
High-FSC | R4/R12/R20 | Increased Eucampia (interglacial samples) / Purified Eucampia (glacial samples) |
Moderate-FL1 | R5/R13/R21 | Abundant discoid diatoms |
High-FL1 | R6/R14/R22 | Abundant Fragilariopsis |
Low-FL1 | R7/R15/R23 | Abundant Thalassiothrix (interglacial samples) / Abundant Eucampia (glacial samples) |
Low–Mid FL1 | R8/R16/R24 | Increased Rhizosolenia |
Moderate-FSC × Moderate-FL1 | R1 × R5/R9 × R13/R17 × R21 | Purified discoid diatoms, mainly Thalassiosira |
Low-FSC × High-FL1 | R2 × R6/R10 × R14/R18 × R22 | Purified Fragilariopsis |
Low-FSC × Low-FL1 | R2 × R7/R10 × R15/R18 × R23 | Purified Thalassiothrix (interglacial samples) |
High-SSC × Low–Mid FL1 | R3 × R8/R11 × R16/R19 × R24 | Purified Rhizosolenia (Holocene samples) |