Science & Tech · Science & Environment · 7 hrs ago
Madagascar rock formation resembles the Moon’s bright highlands
A large, pale rock formation called the Saririaki massif lies in southern Madagascar.
Images from the International Space Station show it as a bright area about 100 square kilometres wide.
Its rock is anorthosite, the same type of rock that makes up the Moon’s bright highlands.
The Madagascar formation formed on Earth at least 660 million years ago, and later experienced intense pressure and heat as the ancient supercontinent Gondwana took shape.
The Moon’s anorthosite formed through a different process, when lighter minerals rose through an early ocean of molten rock.
Because lunar samples on Earth are scarce, scientists use similar rocks on Earth to make test materials for lunar dust.
These materials can help test rover wheels, drilling equipment, spacesuits and systems intended for future lunar bases.
A bright rock formation in southern Madagascar is made of anorthosite, the same type of rock that forms the Moon’s bright highlands.
The Saririaky massif appears in satellite images as a pale area covering about 100 square kilometres.
Geologists say the formation is at least 660 million years old and was later affected by intense pressure and heat.
Scientists can use terrestrial anorthosite as an analogue for studying lunar geology and testing equipment for future lunar missions.
- Who
- Geologists and scientists studying the formation and lunar geology.
- What
- The Saririaky massif in Madagascar is an anorthosite formation resembling the Moon’s bright highlands.
- When
- The formation is at least 660 million years old. The date it was observed in satellite images is Not stated.
- Where
- Southern Madagascar.
- Why
- Its composition is similar to lunar highland rock, making it useful for studying lunar geology and developing lunar soil simulants.
This story does not have two clearly opposing sides.
The Saririaky massif formed after molten material rose from Earth’s mantle and cooled.
During the formation of Gondwana, the massif experienced intense pressure and heat.
- Formation
- Saririaki massif
- Location
- Southern Madagascar
- Rock type
- Anorthosite
- Area
- About 100 square kilometres
- Age
- At least 660 million years
Sources
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