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Ancient People in South Africa Unharmed by Volcanic1 Eruption2
About 74,000 years ago, the Mount Toba volcano erupted on what is now the Indonesian island of Sumatra.
The eruption caused a worldwide environmental disaster. It may have destroyed ancient human populations in many parts of the world. But experts say some groups may have survived the disaster unharmed.
Earlier this month, scientists announced that they had found tiny pieces of volcanic glass from the Mount Toba eruption.
Their discovery, however, was 9,000 kilometers away on South Africa’s southern coast.
Some researchers believe the eruption may have caused world temperatures to drop causing a so-called “volcanic winter” that lasted for many years.
Scientists suggest this cold period damaged ecosystems4 and reduced food resources for people around the world.
But, the researchers in South Africa found evidence that the hunter-gatherers there continued to thrive.
Pieces of volcanic glass were found in a rock shelter at a place called Pinnacle5 Point near the town of Mossel Bay. Ancient people lived, cooked food and slept there. They made tools out of stone, bone and wood. Glass pieces were also found in an area about 10 kilometers away.
The researchers said people lived in the rock shelter from 90,000 to 50,000 years ago. They found no sign that people left the area at the time of the eruption.
They said the seaside location may have provided a refuge. Marine6 food sources like shellfish may have been less affected7 than inland plants and animals to the environmental effects of the eruption.
The Mount Toba eruption sent large amounts of volcanic particles into the atmosphere. The particles dimmed the sunlight and possibly killed many plants.
Scientists say it was the most powerful eruption in the past 2 million years. But they are divided over the eruption’s effects. Some think it may have caused a human population collapse8 that became a near-extinction event. Others believe its effects were less severe.
Curtis Marean is a paleoanthropologist with Arizona State University’s Institute of Human Origins and Nelson Mandela University’s Centre for Coastal9 Palaeoscience in South Africa. He spoke10 to the Reuters news service about the findings.
He said, “On a regular basis through time, humans faced dire11 threats from natural disasters. As hunter-gatherers endowed with advanced cognition and a proclivity12 to cooperate, we were able to make it through this disaster, and we were very resilient.”
He added, “But this may not be the case now with our reliance on our highly complicated technological13 system. In my opinion, a volcano like this could annihilate14 civilization as we know it...”
The researchers’ findings were published in the journal Nature.
I’m Jonathan Evans.
Words in this Story
ecosystem3 –n. everything that exists in a particular environment
thrive –v. to grow or develop successfully; to flourish or succeed
location –n. a place or position
marine –adj. of or relating to the sea or the plants and animals that live in the sea
annihilate – v. to destroy something or someone completely
dire – adj. very bad; causing great fear or worry
endowed – v. freely or naturally provided something
erupt – v. to send out rocks, ash, lava15, etc. in a sudden explosion
proclivity – n. a strong natural liking16 for something that is usually bad; a tendency to do something that is usually bad.
resilient – adj. able to become strong, healthy or successful again after something bad happens
1 volcanic | |
adj.火山的;象火山的;由火山引起的 | |
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2 eruption | |
n.火山爆发;(战争等)爆发;(疾病等)发作 | |
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3 ecosystem | |
n.生态系统 | |
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4 ecosystems | |
n.生态系统( ecosystem的名词复数 ) | |
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5 pinnacle | |
n.尖塔,尖顶,山峰;(喻)顶峰 | |
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6 marine | |
adj.海的;海生的;航海的;海事的;n.水兵 | |
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7 affected | |
adj.不自然的,假装的 | |
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8 collapse | |
vi.累倒;昏倒;倒塌;塌陷 | |
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9 coastal | |
adj.海岸的,沿海的,沿岸的 | |
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10 spoke | |
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说 | |
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11 dire | |
adj.可怕的,悲惨的,阴惨的,极端的 | |
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12 proclivity | |
n.倾向,癖性 | |
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13 technological | |
adj.技术的;工艺的 | |
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14 annihilate | |
v.使无效;毁灭;取消 | |
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15 lava | |
n.熔岩,火山岩 | |
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16 liking | |
n.爱好;嗜好;喜欢 | |
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