Monsoonal and other climatic influences on radiolarian species abundance over the last 35 ka, as recorded in core FR10/95-GC17, off North West Cape (Western Australia)

详细信息    查看全文

• 作者：John Rogers ^{john.rogers@anu.edu.au" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Eastern Indian Ocean ; Palaeo-environmental reconstruction ; Sea salinity ; Dissolved nitrates ; Australian Monsoon
• 刊名：Revue de Micropaleontologie
• 出版年：2016
• 出版时间：July-September 2016
• 年：2016
• 卷：59
• 期：3
• 页码：275-293
• 全文大小：5706 K

文摘

Species abundance counts from 46 surface sediment samples have been used to develop transfer functions for the reconstruction of salinity, and dissolved nitrates in the eastern Indian Ocean. Application of the functions to samples from deep-sea core FR10/95-GC17 [22° 07.74′ S, 113° 30.11′ E] shows that, offshore North West Cape, Western Australia, regional changes in salinity and the availability of dissolved nitrates were more significant in determining radiolarian species distributions over the last 35 ka than temperature. In addition, variations in the reconstructed data have been shown to reflect changes in marine currents and terrestrial rainfall over the study period.