This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How do sedimentary cores from the ocean floor support the concept of seafloor spreading? What ... (Read 120 times)

littleanan

  • Hero Member
  • *****
  • Posts: 575
on: Jul 14, 2018
How do sedimentary cores from the ocean floor support the concept of seafloor spreading?
 
  What will be an ideal response?

Question 2

What is the age of the oldest sediments recovered using deep-ocean drilling? How do the ages of these sediments compare to the ages of the oldest continental rocks?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

EAN94

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Jul 14, 2018
Answer to Question 1

Sedimentary cores show patterns of magnetized rock thanks to the natural compass properties of magnetite. The cores from either side of the ocean ridge have patterns that match both in strata thickness and in paleomagnetism.

Answer to Question 2

The oldest seafloor sediments recovered are 180 million years old. This is much much younger than the oldest continental rock, which exceeds 4 billion years in age.


littleanan

  • Hero Member
  • *****
  • Posts: 575
Reply #2 on: Jul 14, 2018
Correct answers!


EAN94

  • Sr. Member
  • ****
  • Posts: 307
Reply #3 on: Jul 14, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

This is a still image from an animation of ocean surface currents from June 2005 to December 2007 This is a still image from an animation of ocean surface currents from June 2005 to December 2007
Andrea Palladio, Plan of main floor (piano nobile), Villa La Rotunda. Andrea Palladio, Plan of main floor (piano nobile), Villa La Rotunda.
Open-ocean systems vary in their biological diversity Open-ocean systems vary in their biological diversity
Sedimentary structures Sedimentary structures
CCS, BECS, biochar, cloud albedo, and ocean fertilization CCS, BECS, biochar, cloud albedo, and ocean fertilization
Effects of alterations in Shh morphogen activity in the floor plate and the limb bud Effects of alterations in Shh morphogen activity in the floor plate and the limb bud
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library