Ancient 'Jurassic World' of Volcanoes Found Hidden Below Earth's Surface
隐藏在地面之下的古代“侏罗纪世界”火山
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2019-08-13 21:58
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The Cooper-Eromanga Basins in the northeastern corner of South Australia and the southwestern corner of Queensland are the site of years of petroleum exploration, and have long concealed fascinating subterranean finds.

南澳大利亚东北角和昆士兰西南角的库珀-埃罗曼加盆地是多年石油勘探的遗址,长期以来一直隐藏着迷人的地下发现。

An international team of researchers, including scientists from Australia's University of Adelaide and Scotland's University of Aberdeen, has discovered a field of 100 'Jurassic-era' underground volcanoes hidden below the Earth's surface in central Australia, according to a study published in the journal Gondwana Research.

澳大利亚阿德莱德大学(University of Adelaide)和苏格兰阿伯丁大学(University of Aberdeen)的科学家组成的一个国际研究团队在澳大利亚中部发现了一个隐藏在地表下的“侏罗纪”(jurassi -era)地下火山群。该研究发表在《冈瓦纳研究》(Gondwana Research)杂志上。

The Cooper-Eromanga Basins, spanning and area in the northeast of South Australia and southwest of Queensland, have been the site of about 60 years of petroleum exploration and production. The ancient underground landscape, however, went unnoticed by experts.

库伯-埃罗曼加盆地位于南澳大利亚东北部和昆士兰西南部,是上世纪60代年石油勘探和生产的场所。然而,专家们没有注意到古老的地下奇观。

Using advanced subsurface imaging technology to identify volcanic craters, lava flows and magma chambers in the Cooper-Eromanga basins, the team revealed the features of the volcanoes, 180 million years after they first developed, in the Jurassic period, between 180 and 160 million years ago.

研究小组利用先进的地下成像技术,对库伯-埃罗曼加盆地的火山口、熔岩流和岩浆房进行了识别,揭示了这些火山的特征。

The volcanoes were subsequently buried beneath layers of sedimentary rock.

火山随后被埋在沉积岩层下。

Although offering a barren landscape today, the Cooper-Eromanga Basins in Jurassic times had craters and fissures that spewed hot ash and lava, and were encircled by river channels evolving into lakes.

尽管今天的库伯-埃罗曼加盆地是一片贫瘠的土地,但侏罗纪时期的库伯-埃罗曼加盆地有火山口和裂缝,喷出炽热的火山灰和熔岩,并被演变成湖泊的河道所包围。

“While the majority of Earth's volcanic activity occurs at the boundaries of tectonic plates, or under the Earth's oceans, this ancient Jurassic world developed deep within the interior of the Australian continent,” said associate professor Simon Holford.

副教授西蒙·霍尔福德说:“虽然地球上大部分的火山活动都发生在构造板块的边缘,或者是地球海洋之下,但这个古老的侏罗纪世界是在澳大利亚大陆内部深处形成的。”

According to Holford, the find offers the prospect of more undiscovered volcanic worlds concealed under the surface of Australia.

霍尔福德说,这一发现为澳大利亚地表下隐藏着更多未被发现的火山系提供了可能性。

What renders the current research particularly interesting is that it suggests more volcanic activity in Australia during the Jurassic period than earlier believed.

使目前的研究特别有趣的是,它表明侏罗纪时期澳大利亚的火山活动比先前认为的要多得多。

The new finds have the potential of altering the understanding of processes that operated in the Earth's past, conclude the scientists.

科学家们总结说,这些新发现有可能改变人们对地球过去活动过程的理解。

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