Domu doze

Domu doze

Sākumlapa

Meklēt

Jaunumi

BSA

Latvijas Valsts Bioloģijas olimpiāde

Uzskates materiāli

Noderīgas grāmatas

Pieredzes apmaiņa

BSA fotoalbums

Latvijas Dabas fotoalbums

Noderīgas norādes

Guest Book


The owner of this web server is not responsible for any kind of a text published with this script

Senākā geologiskā ēra
30, 2008, 17:53Olga
:-:

    Pēc starptaut. stratigr. komisijas domām (kas bieži mainās un gluži nesakrīt ar piem., Latvijas zinātnieku publikācijām) arhaja eona vecākā ēra ir eoarhajs, kas beidzās pirms 3600 milj. Vēl pag. gadā tā sākums nebija noteikts, tagad (2008.g.) ir pieņemts, ka tas sākās p 4000 milj.
    Vēl vecāks ir Hadean (Hadesijs? Aīdijs? - kā latviski, nav noteikts), sācies apm. vēl 600 milj. agrāk, bet tas nav ēras, drīzāk eona statusā.
    http://www.stratigraphy.org/cheu.pdf
    1, 2008, 13:04TAs
[Your answers and comments can be added here]

Show the latest records -> RSSRSS
Upcoming events -> RSSRSS
Show the groped records ->
Show the unanswered records ->

Previous records

[2019.10] [2019.04] [2019.03] [2018.12] [2016.11] [2016.05] [2016.04] [2016.02] [2015.12] [2015.10] [2015.09] [2015.08] [2015.07] [2015.05] [2015.04] [2015.03] [2015.01] [2014.12] [2014.11] [2014.10] [2014.09] [2014.08] [2014.07] [2014.06] [2014.05] [2014.04] [2014.03] [2014.02] [2014.01] [2013.12] [2013.11] [2013.10] [2013.09] [2013.08] [2013.07] [2013.06] [2013.05] [2013.04] [2013.03] [2013.02] [2013.01] [2012.12] [2012.11] [2012.10] [2012.09] [2012.08] [2012.07] [2012.06] [2012.05] [2012.04] [2012.03] [2012.02] [2012.01] [2011.12] [2011.11] [2011.10] [2011.09] [2011.08] [2011.07] [2011.06] [2011.05] [2011.04] [2011.03] [2011.02] [2011.01] [2010.12] [2010.11] [2010.10] [2010.09] [2010.08] [2010.07] [2010.06] [2010.05] [2010.04] [2010.03] [2010.02] [2010.01] [2009.12] [2009.11] [2009.10] [2009.09] [2009.08] [2009.07] [2009.06] [2009.05] [2009.04] [2009.03] [2009.02] [2009.01] [2008.12] [2008.11] [2008.10] [2008.09] [2008.08] [2008.07] [2008.06] [2008.05] [2008.04] [2008.03] [2008.02] [2008.01] [2007.12] [2007.11] [2007.10] [2007.09] [2007.08] [2007.07] [2007.06] [2007.05] [2007.04] [2007.03] [2007.02] [2007.01] [2006.12] [2006.11] [2006.10] [2006.09] [2006.08] [2006.07] [2006.06] [2006.05] [2006.04] [2006.03] [2006.02] [2006.01] [2005.12] [2005.11] [2005.10] [2005.09] [2005.08] [2005.07] [2005.06] [2005.05] [2005.04] [2005.03] [2005.02] [2005.01] [2004.12] [2004.11] [2004.10] [2004.07] [2004.06] [2004.05] [2004.04] [2004.03] [2004.02] [2004.01] [2003.12] [2003.10] [2003.06] [2003.05] [2003.04] [2003.03] [2003.02] [2003.01] [2002.10] [2002.04] [2001.05]
© BSA 8.01.00.beta
Juridiskā adrese:
    Kronvalda bulv. 4,
    Rīga, LU Bioloģijas fakultāte.

Materiālus mājas lapai iesūtīt Marutai Kusiņai
Kr. Valdemāra ielā 6,6. stāvs pa kreisi, dabaszinātņu redakcija (Rīga) vai elektroniski:
dabaszinibas@zvaigzne.lv

Domu doze (atsauksmju grāmata)

Paldies par atsaucību!