11. As they melted they left behind new sedimentary deposits . 12. But the wells tapped into groundwater contaminated by arsenic from sedimentary deposits deep below Bangladesh. 13. The'sequence'part of the name refers to cyclic sedimentary deposits . 14. This disturbs the chemical balance and causes precipitation of the carbonates, which then creates sedimentary deposits . 15. Its underlying strata were formed by Pliocene and Pleistocene lava flows covered by Holocene sedimentary deposits . 16. In most places the original rocks are buried far below more recent volcanic and sedimentary deposits . 17. The Mesozoic Era sedimentary deposits are striking. 18. The upper levels of strata are sedimentary deposits from the Holocene, which are thick in some areas. 19. It was further thought that a few small remnant volcanic peaks and domes still pierce the sedimentary deposits . 20. The effect was only compounded when the Twelve Mile Creek cut through the sedimentary deposits and glacial till.
