×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 30 May, 2020

  • 5 Min Read

Erra Matti Dibbalu-Geoheritage sites

Erra Matti Dibbalu

Erra Matti Dibbalu is dissected and stabilized coastal red sediment mounds, located between Visakhapatnam and Bheemunipatnam in Andhra Pradesh.

Formation:

  • Formed around 12,000 years ago due to sea-land interaction.
  • Comprises a mixture of sand (40-50%), silt and clay (another 50%) with oxidation imparting the unique red colour.

Significance:

  • They are geologically important as they represent the geological history of the late Quaternary period and carry the imprints of the fall of sea level and its subsequent rise, the impact of climate, monsoon and geological processes on the sediments.
  • They are anthropologically and archeologically important as they possibly contain mesolithic and neolithic cultural materials as well.

Recognition:

  • It was recognised as a national geo-heritage site in 2014 and as a protected site by the Andhra Pradesh Government in 2016.
  • The Geological Survey of India (GSI) declares geo-heritage sites/ national geological monuments for protection and maintenance
  • Other Similar Place: The only other place in the country to have a similar stretch of red sand dunes is Tamil Nadu, which has the Teri dune complex.

There are 32 Geo-Heritage sites in India. They are lised below:

S. No

Geological heritage site /

National geological monument

S. No

Geological heritage site /

National geological monument

ANDHRA PRADESH

18

Kishangarh Nepheline Syenite, Ajmer Dist.

1

Volcanogenic bedded Barytes, Mangampeta, Cuddapah Dist.

19

Welded Tuff, Jodhpur Dist.

2

Eparchaean Unconformity, Chittor Dist.

20

Jodhpur Group – Malani Igneous Suite Contact, Jodhpur Dist.

3

Natural Geological Arch, Tirumala Hills, Chittor Dist.

21

Great Boundary Fault at Satur, Bundi Dist.

4

Erra Matti Dibbalu- the dissected and stabilized coastal red sediment mounds located between Vishakhapatnam and Bhimunipatnam.

MAHARASHTRA

KERALA

22

Lonar Lake, Buldana Dist.

5

Laterite near Angadipuram PWD rest house premises, Malapuram Dist.

CHATTISGARH

6

Varkala Cliff Section, Thiruvanatapuram Dist.

22

Lower Permian Marine bed at Manendragarh, Surguja Dist.

TAMILNADU

KARNATAKA

7

Fossil wood near Tiruvakkarai, South Arcot Dist.

24

Columnar Lava, St Mary Island Udupi Dist.

8

National fossil wood park, Sattanur, Tiruchirapalli Dist.

25

Pillow lavas near Mardihalli, Chitradurga Dist.

9

Charnockite, St. Thomas Mount, Madras.

26

Peninsular Gneiss, Lalbagh, Banglore

10

Badlands of Karai Formation with Cretaceous fossils along Karai – Kulakkalnattam Section, Perambalur District.

27

Pyroclastics & Pillow lavas, Kolar Gold fields, Kolar Dist.

GUJARAT

HIMACHAL PRADESH

11

Sedimentary Structures – Eddy Markings, Kadan Dam, Panch Mahals Dist.

28

Siwalik Fossil Park, Saketi, Sirmur dt.,

RAJASTHAN

ODISHA

12

Sendra Granite, Pali Dist.

29

Pillow Lava in lron ore belt at Nomira, Keonjhar dist.

13

Barr Conglomerate, Pali Dist.

JHARKHAND

14

Stromatolite Fossil Park, Jharmarkotra Rock Phosphate deposit, Udaipur Dist.

30

Plant Fossil bearing Inter-trappean beds of Rajmahal Formation, upper Gondwana sequence around Mandro, Sahibganj dist.

15

Gossan in Rajpura-Dariba Mineralised belt, Udaipur Dist.

NAGALAND

16

Stromatolite Park near Bhojunda, Chittaurgarh Dist.

31

Nagahill Ophiolite Site near Pungro,

17

Akal Fossil Wood Park, Jaisalmer Dist.

SIKKIM

32

Stromatolite bearing Dolomite / Limestone of Buxa Formation at Mamley, near Namchi, South district.

Source: PIB


Anti-Defection Law in India

The Supreme Court of India recently gave a final three-week deadline to the Telangana Assembly Speaker to decide pending disqualification petitions against defecting MLAs under the Anti-Defection Law. What is the Anti-Defection Law? The Anti-Defection Law was introduced through the 52nd Amendment (1985), which added the Tenth Schedule to the

Rat-Hole Mining

A major disaster unfolded in East Jaintia Hills, Meghalaya, when at least 18 workers died following an explosion in an illegally operating rat-hole coal mine. This incident highlights the continued prevalence of rat-hole mining despite bans imposed by the National Green Tribunal (NGT) and the Supreme Court of India. Rat-hole mining is driven

India’s Aviation Sector

India’s aviation sector has grown rapidly, becoming a major economic success story. However, regulatory oversight has not evolved at the same pace. Data-driven monitoring of fares and market behavior is essential to ensure fair competition, prevent market abuse, and shift from reactive crisis management to proactive regulation. Challen

Federalism in India

Recently, a high-level committee on Union–State relations submitted its first report to the Government of Tamil Nadu. The report examines the distribution of powers and responsibilities between the Union and the States, highlighting ongoing debates regarding the balance between central authority and state autonomy. This discussion is clos

India–UAE Economic Partnership

The relationship between India and the United Arab Emirates has evolved from a traditional energy-based partnership into a comprehensive economic and strategic relationship. Over the years, strong political trust, growing trade, and expanding investments have transformed bilateral ties into a diversified economic corridor. The economic partnership

DNA

22 Mar,2026

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links

UPSC GS Mains Crash Course - RAW