ArticleslgStudy

earth science

São Jorge Island

São Jorge Island is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand São Jorge Island rather than just read about it. In short: São Jorge (Portuguese pronunciation: [sɐ̃w ˈʒɔɾʒɨ]; Portuguese for 'Saint George') is an island in the central group of the Azores archipelago and part of the autonomous region of Portugal. Separated from its nearest neighbours (Pico and Faial islands) by the 15-kilometre (9.3 mi) Pico-São Jorge Channel, the central group is often referred colloquially as part of the Triângulo ("Triangle") group or just "The Triangl…

São Jorge Island — main illustration
São Jorge Island — illustration

Key takeaways

  • São Jorge Island belongs to earth science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect São Jorge Island to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of São Jorge Island from memory before moving on to harder problems.

Reference excerpt

São Jorge (Portuguese pronunciation: [sɐ̃w ˈʒɔɾʒɨ]; Portuguese for 'Saint George') is an island in the central group of the Azores archipelago and part of the autonomous region of Portugal. Separated from its nearest neighbours (Pico and Faial islands) by the 15-kilometre (9.3 mi) Pico-São Jorge Channel, the central group is often referred colloquially as part of the Triângulo ("Triangle") group or just "The Triangle". São Jorge is a relatively long thin island with tall cliffs, whose 8,381 inhabitants are concentrated on various geological debris fields (fajãs) along the north and south coasts; from east to west, the island is 53 kilometres (33 mi) long and, north to south, 8 kilometres (5.0 mi) wide: its area is 237.59 square kilometres (91.73 mi2).

History

It is unclear when the first explorers discovered the island of São Jorge; as part of the politics of human occupation, the Azores were populated after 1430 (probably 1439) through the initiative of Prince Henry the Navigator. 23 April, known as the feast day of Saint George, has been cited by historians as the reason for the island's name, although this is likely conjecture. Genovese and Catalan maps of the 14th century originally designated the long, slender island "São Jorge", a designation that was maintained by Infante D. Henrique when settlers from northern Europe began to colonize the island (around 1460, or twenty years after it was first sighted). Although unclear, Azorean chroniclers believe that settlement on the island concentrated around the two communities of Velas and Calheta, and developed into the interior. It was in 1460 that the construction of the first church dedicated to São Jorge occurred in the area of Velas, from the testaments of Infante D. Henrique. What is certain is that the island was populated by the time that João Vaz Corte Real, the Donatary-Captain of Angra do Heroísmo (Terceira) obtained the captaincy of the island, by contract on 4 May 1483. By 1500, the settlement of Velas was elevated from villa to municipality (giving rise to the supposition that Velas was the first center on the island). By 1659, the parochial church had already undergone public restoration, that gave origin to the present church in that municipality. After an unsuccessful adventure to the island of Flores, the Flemish nobleman Willem van der Haegen (later known as Guilherme da Silveira) moved to the area of Topo where he established and founded a local community, in 1480. After living there for several years he died and was buried in the chapel of the Casa dos Tiagos. Topo was eventually elevated to capital of the municipality by 1510, but lost this title to Calheta on June 3, 1534. During this period, the island was wild and many of the roads difficult or non-existent between the communities, resulting in isolated villages located along the coast. Connections between these communities developed by sea, and the better provisioned ports were likely to develop economically. This was the case with Calheta, Urzelina and Velas; the sites, although farther from the Terceira (the towns are located on the opposite coast), were preferred way-points due to secure and sheltered ports, with good anchorage and providing many goods and services. The growth of the population was rapid, and by the mid-17th century, São Jorge had approximately 3000 inhabitants and three towns: Velas, Topo and Calheta. The island demonstrated a strong economic vitality: in addition to wine, corn, and yam, it was also an important exporter of woad to Flanders and other countries in Europe. The dynastic crisis (1580) caused by the ascension of King Philip II of Spain (King Philip I of Portugal) had consequences on the island, since gentry supported (along with those on Terceira) the pretender to the throne, António, Prior of Crato. King António reigned on the continent for about twenty days, until he was defeated at the Battle of Alcântra, whereupon he moved his court to Terceira Island and governed in opposition until 1583. The Habsburg-supported King Phillip finally defeated his forces at sea at the Battle of Ponta Delgada between July 25–26, 1582, and the garrisons in São Jorge only capitulated to the forces of Castillo after the fall of Terceira in 1583.

Following 1583, the island experienced a period of relative isolation, partially due to the poor quality of its ports and its limited economic importance. After the Spanish occupation, it was largely abandoned and its inhabitants were left to survive a meager existence. The island did not escape Atlantic piracy: the islanders were subject to attacks by English and French privateers in 1589 and 1590, raiders after 1590 (from the Barbary coast and lands occupied by the Turks) and during the 17th and 18th centuries (mostly around Calheta). In 1625, the inhabitants of Fajã de São João were captured by pirates and likely sold into slavery. The tranquillity around the island was also broken on September 20, 1708, when the town of Velas was attacked by French pirates under the command of René Duguay-Trouin. The population of the community resisted for twenty-four hours, but eventually the pirates made shore where they disembarked. The resistance, commanded by Sergeant-major Amaro Soares de Sousa, occurred around the village of Banquetas saving the other villages from occupation and pillaging. During the Portuguese Civil War, Liberalist forces were stationed on the island after May 10, 1831. Generally, the island's residents have lived for many years in isolation, interrupted by rare visits from the authorities, commercial boats from the local islands, and the occasional nobleman who has come to contemplate the local scenery. With the inauguration of its ports, and the airport/aerodrome (April 23, 1982) commercial ventures have grown (especially the export of the local cheese), the expansion of animal husbandry, the fisheries and a small crafts industry.

Geography

Physical geography

… excerpt ends here. Continue reading the full article.

Illustrations

São Jorge Island illustration
São Jorge Island illustration
São Jorge Island: Matrix Church of Nossa Senhora do Rosário, Topo. Built in the 16th century, it is one of the earliest churches on the island of São Jorge
Matrix Church of Nossa Senhora do Rosário, Topo. Built in the 16th century, it is one of the earliest churches on the island of São Jorge
São Jorge Island: Old windmill, Morro das Velas
Old windmill, Morro das Velas
São Jorge Island illustration

Worked examples

Example 1 — a first encounter with São Jorge Island

Start with the simplest possible case. Write down what São Jorge Island claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to São Jorge Island before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about São Jorge Island ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of São Jorge Island

In research
São Jorge Island appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses São Jorge Island in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
São Jorge Island is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fissure vents, Islands of the Azores, Mountains of Portugal, so understanding it makes those chapters shorter.
In everyday life
Look for São Jorge Island outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “São Jorge Island” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study São Jorge Island in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what São Jorge Island means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain São Jorge Island out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is São Jorge Island in simple terms?

São Jorge (Portuguese pronunciation: [sɐ̃w ˈʒɔɾʒɨ]; Portuguese for 'Saint George') is an island in the central group of the Azores archipelago and part of the autonomous region of Portugal. Separated from its nearest neighbours (Pico and Faial islands) by the 15-kilometre (9.3 mi) Pico-São Jorge Ch…

Why does São Jorge Island matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study São Jorge Island?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on São Jorge Island.

Tags

  • Fissure vents
  • Islands of the Azores
  • Mountains of Portugal
  • Stratovolcanoes of Portugal
  • Subduction volcanoes
  • São Jorge Island

Keep exploring