Multi-proxy evidence of late Holocene human-induced environmental changes at Lake Pupuke, Auckland (New Zealand)
Multi-proxy evidence of late Holocene human-induced environmental changes at Lake Pupuke, Auckland (New Zealand)
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奥克兰（新西兰）普普克湖全新世晚期人类引起的环境变化的多代理证据
DOI：
10.1016/j.quaint.2009.01.013
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发表时间：
2009
影响因子：
2.2
通讯作者：
A. Lücke
中科院分区：
文献类型：
--
作者：
B. Striewski;C. Mayr;J. Flenley;R. Naumann;G. Turner;A. Lücke
新西兰是世界上最后一块被人类殖民的大陆。尽管人类在这个国家存在的时间很短，但人们对人类最早到达的日期一直存在争议，这导致了两种截然不同的殖民假设的出现：早期假设和短暂的史前史。为了在这两种假设之间做出决定，我们采用了一系列的多代理调查（地球化学，稳定同位素和矿物磁性）的湖泊序列，从湖Pupuke，马尔湖在城市的奥克兰和一个地区可能在新西兰的第一个地方已经被早期的人殖民。从多代理证据重建的环境历史确定了一个明显的缺乏集水干扰c。公元前2000年，直到朗伊托托火山爆发前几十年。扰动的性质和不稳定性明确地指向人为强迫，并可能标志着史前人类在该地点殖民的开始。在沉积物中存在的独立定年的灰岩年代地层标志层之间的线性插值允许将该事件定年为c。610calyrB.P.这个日期符合该地区的短史前史。
New Zealand was the last major landmass in the world to be colonised by people. Despite the short time-depth of human presence in the country there is ongoing debate about the date of earliest arrival of people that resulted in the emergence of two contrasting colonisation hypotheses: the Early hypothesis and the Short prehistory. To decide between both hypotheses we employed a range of multi-proxy investigations (geochemistry, stable isotopes and mineral magnetism) on a lacustrine sequence from Lake Pupuke, a maar lake in the city of Auckland and an area potentially among the first places in New Zealand to have been colonised by early people. The environmental history reconstructed from the multi-proxy evidence identified a clear lack of catchment disturbance from c. 2000B.P. until several decades before the eruption of the Rangitoto volcano. The nature and abruptness of disturbance unambiguously point to anthropogenic forcings and are likely to mark the onset of prehistoric human colonisation at the site. Linear interpolation between independently dated tephrochronostratigraphic marker beds present in the sediments allowed to date this event to c. 610calyrB.P. This date is in compliance with the Short prehistory for this region.