Bài mẫu Writing task 1 dạng Map trong kỳ thi IELTS cho người mới bắt đầu
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Tìm hiểu thêm về các dạng biểu đồ và cấu trúc Writing Task 1 của Academic.
The diagram below gives the information about the Hawaiian island chain in the centre of the Pacific Ocean.
Write a report for a university lecturer describing the information shown.
Write at least 150 words.
The map portrays the Hawaiian island chain, which is located in the heart of the Pacific Ocean and roughly 2,700 kilometres in length. As is presented, it is formed of volcanoes and the active ones are at the south-east tip of the archipelago, where Hawaii itself is situated. It also shows the how the volcano eruption occurs.
It is pointed out that the chain began to form almost 80 million years ago on solid dense rock bed and each island started to evolve after an eruption on the seafloor. First, a `hot spot’ existed on the ocean bed, which let out a plume of the material called ‘magma’. Further, hot spot remained stable. Hence, magma spume was formed. This magma may originate as deep as 2,883 km below the ocean bed. Next, further eruptions took place, which built up the volcano. Eventually, it emerged above the surface of the ocean.
Afterward, the spume of magma has remained immobile as the Pacific tectonic plate moves in a north-west direction across it at an annual speed of 7-9 centimetre. As it moves, a volcano forms as it passes over the hotspot and then become inactive when it has passed it. The other major islands in the Pacific ocean are Niihau, Kauai, Oahu, Molokai, Maui, Lanai and Kahoolawe which are 0-100 kilometres away from each other.
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