. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage . Fig. 42.—Origin of various forms of coral reefs according to Darwin: I, fringing reef; II, barrier reef; III, atoll. Cross sections above, outline below, in each case. 1, 2, sea level in I and II respectively. the reef will be separated more and more from the shore, and a channel or lagoon without corals is consequently produced between the reef and the original coast, , a barrier reef is formed (Fig. 42, II). When the submergence is long-continued, the island itself may di
. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage . Fig. 42.—Origin of various forms of coral reefs according to Darwin: I, fringing reef; II, barrier reef; III, atoll. Cross sections above, outline below, in each case. 1, 2, sea level in I and II respectively. the reef will be separated more and more from the shore, and a channel or lagoon without corals is consequently produced between the reef and the original coast, , a barrier reef is formed (Fig. 42, II). When the submergence is long-continued, the island itself may disappear, and only the reef, now an atoll, remains (Fig. 42, III). "Atolls are the grave stones of sunken ; All intergradations between barrier reefs surrounding islands and atolls may be found. Volcanic islands with surrounding reefs are found in the Gambier archipelago. In the Society Islands the progressive disappearance of the volcanic peaks
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology
