Dated Ohakean terraces offset by the Wellington Fault, near Woodville, New Zealand
Dated Ohakean terraces offset by the Wellington Fault, near Woodville, New Zealand
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新西兰伍德维尔附近被惠灵顿断层抵消的过时的奥哈基阶地
DOI：
10.1080/00288306.1990.10425700
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发表时间：
1990
影响因子：
2.2
通讯作者：
V. Neall
中科院分区：
文献类型：
--
作者：
M. Marden;V. Neall
摘要通过对伍德维尔附近Ballantrae研究站一系列阶地的沉积进行放射性碳测年，提供了南Ruahine山脉以东的Ohakean时代的冲积沉积的第一个年代。在这里，这些阶地被惠灵顿断层的活动痕迹垂直错开。在遗迹以西，上升的沉积沉积年代为约13000年；在遗迹以东，较年轻的沉积沉积日期为约10500年，淹没并埋葬了下降的老阶地表面。计算了沿这段惠灵顿断层的Ohakean阶地表面的垂直偏移量和偏移率。陡坡高度从19米到10米不等，最小垂直偏移率从1.23毫米/年到0.76毫米/年不等。
Abstract Radiocarbon dating of deposits from a sequence of terraces at Ballantrae Research Station, near Woodville, provides the first dates for alluvial deposits of Ohakean age to the east of the southern Ruahine Range. Here these terraces have been vertically offset by the active trace of the Wellington Fault. To the west of the trace, upthrown aggradational deposits are dated at c. 13 000 yr B. P. To the east of the trace, younger aggradational deposits dated at c. 10 500 yr B. P. have inundated and buried the downthrown older terrace surfaces. Vertical offsets and rates of offset were calculated for the Ohakean terrace surfaces along this section of the Wellington Fault. Scarp heights range from 19 m to 10 m. Minimum rates of vertical offset vary from 1.23 mm/yr to 0.76 mm/yr.