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Figure 5 | Progress in Earth and Planetary Science

Figure 5

From: Biogeochemistry and limnology in Antarctic subglacial weathering: molecular evidence of the linkage between subglacial silica input and primary producers in a perennially ice-covered lake

Figure 5

Depth profiles of biogenic silica concentrations and X-ray diffraction analyses of sediments from core Mw5S. (a) Vertical profiles of biogenic silica content (wt%), (b) opal-A signatures determined with X-ray diffraction analysis, and (c) denaturing gradient-gel electrophoresis (DGGE) analysis of L. Maruwan sediments (core Mw5S). Note that the direction of electrophoresis is from right to left.

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