Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Collisions with ice/volatile objects: geological implications--a qualitative treatment.

P Wilde1, M S Quinby-Hunt

  • 1Office of Naval Research, Asian Office, Tokyo, Japan.

Palaeogeography, Palaeoclimatology, Palaeoecology
|August 1, 1997
PubMed
Summary

Aperiodic collisions with extraterrestrial ice/volatile bodies may cause rapid geologic changes. Subtle oceanic evidence, like geochemical spikes, could indicate these impacts and their effects on Earth systems.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Understanding surface reactivity of Si electrodes in Li-ion batteries by in operando scanning electrochemical microscopy.

Chemical communications (Cambridge, England)·2016
Same author

Promising results after the treatment of simple and complex distal humerus type C fractures by angular-stable double-plate osteosynthesis.

Orthopaedics & traumatology, surgery & research : OTSR·2013
Same author

Results of screening for intracranial aneurysms in patients with coarctation of the aorta.

AJNR. American journal of neuroradiology·2012
Same author

One-third tubular-hook-plate osteosynthesis for olecranon osteotomies in distal humerus type-C fractures: a preliminary report of results and complications.

Injury·2011
Same author

[Prehospital airway management of laryngeal tubes. Should the laryngeal tube S with gastric drain tube be preferred in emergency medicine?].

Der Anaesthesist·2010
Same author

Determination of the average orientation of DNA in the octopus sperm Eledone cirrhossa through polarized light scattering.

Applied optics·2010

Area of Science:

  • Geology
  • Planetary Science
  • Environmental Science

Background:

  • Earth's geologic record may show rapid changes from extraterrestrial impacts.
  • Volatile extraterrestrial bodies, like ice/comets, leave subtle evidence, especially in oceans.
  • Impact sites (atmosphere, land, ocean) influence observed effects.

Purpose of the Study:

  • To propose aperiodic collisions with extraterrestrial ice/volatile bodies as a mechanism for rapid geologic change.
  • To explore the potential effects of such impacts on Earth's oceans and atmosphere.
  • To qualitatively assess the impact of volatile-rich extraterrestrial objects on geochemical and fossil records.

Main Methods:

  • Qualitative analysis of impact effects.
  • Mass balance calculations to estimate required impactor mass.

Related Experiment Videos

  • Discussion of impacts from water-, carbon-, nitrogen-, and sulfur-containing objects.

    • Main Results:

    • Atmospheric impacts may increase rain acidity, nutrient levels, and cause greenhouse warming/cooling.
    • Oceanic impacts, particularly from nitrogen-rich objects, could boost productivity.
    • Combined effects may lead to oceanic anoxia and altered carbonate stability.

    Conclusions:

    • Extraterrestrial volatile body impacts offer a mechanism for abrupt environmental shifts recorded in Earth's history.
    • These impacts can subtly alter oceanic and atmospheric chemistry, leading to significant ecological consequences.
    • Further research can identify specific geologic events linked to such impact events.