Rocks

Roca formada por calor y presión extremos

• banding

• roca sedimentaria

• roca madre

• roca metamórfica

Answer explanation

Metamorphic rock is formed from existing rocks that undergo extreme heat and pressure, altering their structure and mineral composition. This distinguishes it from sedimentary and parent rocks.

¿La roca de la que se formó una roca metamórfica se llama?

• banding

• roca metamórfica no foliada

• roca madre

• metamorfosis

Answer explanation

The rock from which a metamorphic rock is formed is called the parent rock. This term refers to the original rock that undergoes metamorphism to create a new rock type.

Una roca metamórfica que no presenta una apariencia bandeada o en capas.

• rocas máficas

• roca sedimentaria orgánica

• bandeado

• roca metamórfica no foliada

Answer explanation

A nonfoliated metamorphic rock does not show banding or layering, distinguishing it from foliated types. Examples include marble and quartzite, which form under different conditions than those that create banded rocks.

4.) La concentración de minerales en capas discretas en rocas metamórficas.

• bandas

• roca metamórfica no foliada

• roca madre

• metamorfosis

Answer explanation

Banding refers to the concentration of minerals into distinct layers in metamorphic rocks, resulting in a striped appearance. This process is a key characteristic of foliated metamorphic rocks.

5.) Formado por calor y presión. Tiene líneas, bandas, foliado (gneis, pizarra).

• roca sedimentaria química

• roca metamórfica foliada

• bandas

• roca metamórfica no foliada

Answer explanation

The question describes rocks formed by heat and pressure with lines and bands, indicating foliation. Gneiss and slate are examples of foliated metamorphic rocks, making 'foliated metamorphic rock' the correct choice.

6.) Se forma cuando los minerales cristalizan de una solución para convertirse en roca.

• rocas sedimentarias clásticas

• roca sedimentaria orgánica

• roca sedimentaria química

• roca metamórfica foliada

Answer explanation

Chemical sedimentary rocks form when minerals crystallize out of a solution, such as from evaporating water, leading to rock formation. This distinguishes them from clastic and organic sedimentary rocks.

Una roca sedimentaria se forma a partir de los restos de plantas o animales.

• roca sedimentaria orgánica

• roca sedimentaria química

• roca metamórfica foliada

• bandas

Answer explanation

An organic sedimentary rock forms from the remains of plants or animals, distinguishing it from chemical sedimentary rocks, which form from mineral precipitation, and metamorphic rocks, which arise from existing rocks under heat and pressure.

Una roca sedimentaria hecha de fragmentos rotos de roca preexistente.

• rocas máficas

• rocas sedimentarias clásticas

• roca sedimentaria orgánica

• roca madre

Answer explanation

Clastic sedimentary rocks are formed from the accumulation of broken fragments of preexisting rocks, making them the correct choice for the description provided.

Rocas de color oscuro que tienen bajo contenido de sílice y son ricas en hierro y magnesio.

• roca ígnea extrusiva

• roca ígnea intrusiva

• Rocas Ígneas Félsicas

• Rocas Ígneas Máficas

Answer explanation

Mafic igneous rocks are characterized by low silica content and high levels of iron and magnesium, resulting in their dark color. This matches the description provided in the question.

Rocas de color claro que son ricas en elementos como aluminio, potasio, silicio y sodio.

• roca ígnea extrusiva

• roca ígnea intrusiva

• Rocas Ígneas Félsicas

• Rocas Ígneas Máficas

Answer explanation

Felsic igneous rocks are light-colored and rich in aluminum, potassium, silicon, and sodium. This composition distinguishes them from mafic rocks, which are darker and contain more iron and magnesium.