They were originally formed by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe that lives today in a wide range of environments ranging from the shallow shelf to lakes, rivers, and even soils.urface is covered by a felt of cyanobacterial filaments that trap sediment grains that are washed across the mat surface. Abundant sediment supply produces granular laminae, low sediment supply produces layers rich in organic matter (green in drawing).
A seraglio (/ s É Ë r Ã¦ l j oÊ / sÉ-RAL-yoh or / s É Ë r ÉË l j oÊ / sÉ-RAHL-yoh) or serail is the sequestered living quarters used by wives and concubines in an Ottoman household. The term harem is a generic term for domestic spaces reserved for women in a Muslim family, which can also refer to the women themselves.
serÂ·if (sÄrâ²Ä­f) n. A fine line finishing off the main strokes of a letter, as at the top and bottom of M. [Perhaps from Dutch schreef, line, from Middle Dutch scrÄve, from scriven, to write, from Latin scrÄ«bere; see skrÄ«bh- in Indo-European roots.] 1  American HeritageÂ® Dictionary of the English Language, Fifth Edition. Copyright Â© 2016 by Houghton Mifflin Harcourt Publishing Company.