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Evidence of recent mangrove decline from an archaeological site in Western Australia
Author(s) -
KENDRICK GEORGE W.,
MORSE KATE
Publication year - 1990
Publication title -
australian journal of ecology
Language(s) - English
Resource type - Journals
eISSN - 1442-9993
pISSN - 0307-692X
DOI - 10.1111/j.1442-9993.1990.tb01040.x
Subject(s) - mangrove , midden , shore , holocene , transgressive , archaeology , palynology , geology , subtropics , sedimentary rock , oceanography , geography , ecology , paleontology , pollen , sedimentary depositional environment , structural basin , biology
Abstract Mangrove‐associated molluscan material predominates in a 7000‐year‐old Aboriginal midden site on the subtropical north‐central coast of Western Australia at a locality now remote from significant modern mangroves. A palaeolagoon, separated from the ocean since about 5000 years bp , is the likely principal source of the shell midden material. An apparent decline of mangroves between Exmouth Gulf and the Gascoyne River delta since the Middle Holocene is attributed primarily to sedimentary processes, which have modified the initial, transgressive shoreline established around 7–6000 years bp , This may reflect similar processes reported from northern Australia.