User profiles for Joseph L. Kirschvink

Joseph L. Kirschvink

California Institute of Technology
Verified email at caltech.edu
Cited by 32020

[PDF][PDF] Late Proterozoic low-latitude global glaciation: The snowball Earth

JL Kirschvink - The proterozoic biosphere, 1992 - core.ac.uk
2.3. 1 Introduction A fundamental question of earth history concerns the nature of the Late
Proterozoic glaciogenic sequences that are known from almost all of the major cratonic areas, …

Magnetite in human tissues: a mechanism for the biological effects of weak ELF magnetic fields

JL Kirschvink, A Kobayashi‐Kirschvink… - …, 1992 - Wiley Online Library
Due to the apparent lack of a biophysical mechanism, the question of whether weak, low‐frequency
magnetic fields are able to influence living organisms has long been one of the most …

Uniform magnetic fields and double‐wrapped coil systems: Improved techniques for the design of bioelectromagnetic experiments

JL Kirschvink - Bioelectromagnetics, 1992 - Wiley Online Library
A common mistake in biomagnetic experimentation is the assumption that Helmholtz coils
provide uniform magnetic fields; this is true only for a limited volume at their center. Substantial …

Magnetite biomineralization in the human brain.

JL Kirschvink… - Proceedings of the …, 1992 - National Acad Sciences
Although the mineral magnetite (Fe3O4) is precipitated biochemically by bacteria, protists,
and a variety of animals, it has not been documented previously in human tissue. Using an …

Magnetite-based magnetoreception

JL Kirschvink, MM Walker, CE Diebel - Current opinion in neurobiology, 2001 - Elsevier
Orientation, navigation, and homing are critical traits expressed by organisms ranging from
bacteria through higher vertebrates. Sensory systems that aid such behavior have provided …

[BOOK][B] Magnetite biomineralization and magnetoreception in organisms: a new biomagnetism

JL Kirschvink, DS Jones, BJ MacFadden - 2013 - books.google.com
The mystery of how migrating animals find their way over unfamiliar terrain has intrigued
people for centuries, and has been the focus of productive research in the biological sci ences …

Ferromagnetic resonance and low-temperature magnetic tests for biogenic magnetite

BP Weiss, SS Kim, JL Kirschvink, RE Kopp… - Earth and Planetary …, 2004 - Elsevier
Magnetite is both a common inorganic rock-forming mineral and a biogenic product formed
by a diversity of organisms. Magnetotactic bacteria produce intracellular magnetites of high …

The Paleoproterozoic snowball Earth: a climate disaster triggered by the evolution of oxygenic photosynthesis

RE Kopp, JL Kirschvink, IA Hilburn… - Proceedings of the …, 2005 - National Acad Sciences
Although biomarker, trace element, and isotopic evidence have been used to claim that
oxygenic photosynthesis evolved by 2.8 giga-annum before present (Ga) and perhaps as early …

Biogenic magnetite as a basis for magnetic field detection in animals

JL Kirschvink, JL Gould - Biosystems, 1981 - Elsevier
Bacteria, sharks, honey bees, and homing pigeons as well as other organisms seem to detect
the direction of the earth's magnetic field. Indirect but reproducible evidence suggests that …

Paleoproterozoic snowball Earth: Extreme climatic and geochemical global change and its biological consequences

JL Kirschvink, EJ Gaidos, LE Bertani… - Proceedings of the …, 2000 - National Acad Sciences
Geological, geophysical, and geochemical data support a theory that Earth experienced
several intervals of intense, global glaciation (“snowball Earth” conditions) during Precambrian …